Re: [PATCH] drm/bridge: anx7625: Remove redundant 'flush_workqueue()' calls

2025-03-12 Thread Robert Foss
> if (platform->hdcp_workqueue) { > cancel_delayed_work(&platform->hdcp_work); > - flush_workqueue(platform->hdcp_workqueue); > destroy_workqueue(platform->hdcp_workqueue); > } Reviewed-by: Robert Foss > > -- > 2.25.1 >

Re: [PATCH][next] drm/bridge: Fix spelling mistake "gettin" -> "getting"

2025-03-03 Thread Robert Foss
On Fri, 28 Feb 2025 08:32:47 +, Colin Ian King wrote: > There is a spelling mistake in a dev_err message. Fix it. > > Applied, thanks! [1/1] drm/bridge: Fix spelling mistake "gettin" -> "getting" https://gitlab.freedesktop.org/drm/misc/kernel/-/commit/db505ff68c12 Rob

Re: [PATCH 1/1] drm/bridge: ti-sn65dsi83: Support negative DE polarity

2025-02-26 Thread Robert Foss
On Tue, 25 Feb 2025 14:51:13 +0100, Alexander Stein wrote: > Polarity for DE is stored in bridge state. Use this flag for setting > the DE polarity in the bridge. > > Applied, thanks! [1/1] drm/bridge: ti-sn65dsi83: Support negative DE polarity (no commit info) Rob

Re: [PATCH v1 2/3] dt-bindigs: display: extend the simple bridge with MStar TSUMU88ADT3-LF-1

2025-02-20 Thread Robert Foss
/Documentation/devicetree/bindings/display/bridge/simple-bridge.yaml > @@ -31,6 +31,7 @@ properties: >- ti,opa362 >- ti,ths8134 >- ti,ths8135 > + - mstar,tsumu88adt3-lf-1 > >ports: > $ref: /schemas/graph.yaml#/properties/ports > -- > 2.43.0 > Reviewed-by: Robert Foss

Re: [PATCH v1 1/3] dt-bindigs: display: extend the LVDS codec with Triple 10-BIT LVDS Transmitter

2025-02-20 Thread Robert Foss
>- ti,ds90c185 # For the TI DS90C185 FPD-Link Serializer >- ti,ds90c187 # For the TI DS90C187 FPD-Link Serializer >- ti,sn75lvds83 # For the TI SN75LVDS83 FlatLink transmitter > -- > 2.43.0 > Reviewed-by: Robert Foss

Re: [PATCH v1 3/3] drm/bridge: simple-bridge: Add support for MStar TSUMU88ADT3-LF-1

2025-02-20 Thread Robert Foss
ible = "mstar,tsumu88adt3-lf-1", > + .data = &(const struct simple_bridge_info) { > + .connector_type = DRM_MODE_CONNECTOR_HDMIA, > + }, > }, > {}, > }; > -- > 2.43.0 > Reviewed-by: Robert Foss

Re: [PATCH 1/2] drm/bridge: ti-sn65dsi83: Set bridge type

2025-02-18 Thread Robert Foss
On Mon, 20 Jan 2025 14:21:34 +0100, Alexander Stein wrote: > This is a DSI to LVDS bridge, so set the bridge type accordingly. > > Applied, thanks! [1/2] drm/bridge: ti-sn65dsi83: Set bridge type https://gitlab.freedesktop.org/drm/misc/kernel/-/commit/272f17229e47 [2/2] drm/bridge: nwl-ds

Re: [PATCH] drm/bridge: analogix_dp: Use devm_platform_ioremap_resource()

2025-02-18 Thread Robert Foss
On Tue, 28 Jan 2025 14:56:45 +0800, oushixiong1...@163.com wrote: > Convert platform_get_resource(), devm_ioremap_resource() to a single > call to devm_platform_ioremap_resource(). > > Applied, thanks! [1/1] drm/bridge: analogix_dp: Use devm_platform_ioremap_resource() (no commit info)

Re: [PATCH] drm/bridge: ti-sn65dsi86: Check for CONFIG_PWM using IS_REACHABLE()

2025-02-18 Thread Robert Foss
> > > There is no change until CONFIG_PWM actually becomes tristate. > > > > Signed-off-by: Uwe Kleine-König > > Reviewed-by: Louis Chauvet Reviewed-by: Robert Foss

Re: [PATCH v7 0/5] drm: small cleanups and improvements

2025-02-17 Thread Robert Foss
On Fri, 14 Feb 2025 13:57:39 +0100, Luca Ceresoli wrote: > This series collects some minor improvements and fixes previously part of > [0], hence the "v7" version number. > > All of these patches already have some Review/Ack tags. > > [0] > https://lore.kernel.org/dri-devel/20250206-hotplug-drm-

Re: [PATCH v3] gpu: cdns-mhdp8546: fix call balance of mhdp->clk handling routines

2025-02-17 Thread Robert Foss
On Fri, 14 Feb 2025 18:46:32 +0300, Vitalii Mordan wrote: > If the clock mhdp->clk was not enabled in cdns_mhdp_probe(), it should not > be disabled in any path. > > The return value of clk_prepare_enable() is not checked. If mhdp->clk was > not enabled, it may be disabled in the error path of cdn

Re: [PATCH RESEND v6 1/3] drm/bridge: synopsys: Add audio support for dw-hdmi-qp

2025-02-17 Thread Robert Foss
This patch has some checkpatch --strict warnings. With those fixed, feel free to add my r-b. Reviewed-by: Robert Foss On Fri, Feb 14, 2025 at 5:47 PM Detlev Casanova wrote: > > From: Sugar Zhang > > Register the dw-hdmi-qp bridge driver as an HDMI audio codec. > > T

Re: [PATCH 0/8] drm/bridge: minor cleanups

2025-02-10 Thread Robert Foss
On Thu, 06 Feb 2025 18:02:32 +0100, Luca Ceresoli wrote: > This series removes some unnecessary #includes and and unused forward > declarations, which I noticed while preparing a way more complex series > (bridge hotplug). I decided to split these trivial patches to a separate > series to limit the

Re: [PATCH] drm/bridge: analogix_dp: Use devm_platform_ioremap_resource()

2025-02-10 Thread Robert Foss
t; > - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); > - > - dp->reg_base = devm_ioremap_resource(&pdev->dev, res); > + dp->reg_base = devm_platform_ioremap_resource(pdev, 0); > if (IS_ERR(dp->reg_base)) { > ret = PTR_ERR(dp->reg_base); > goto err_disable_clk; > -- > 2.43.0 > Reviewed-by: Robert Foss

Re: [PATCH] drm/bridge: convert to use devm_platform_ioremap_resource()

2025-02-10 Thread Robert Foss
On Thu, 06 Feb 2025 15:17:13 +0800, oushixiong1...@163.com wrote: > convert to use devm_platform_ioremap_resource(). > > Applied, thanks! [1/1] drm/bridge: convert to use devm_platform_ioremap_resource() https://gitlab.freedesktop.org/drm/misc/kernel/-/commit/aaad45cfaa1b Rob

Re: [PATCH v4] drm/bridge: it6505: fix HDCP V match check is not performed correctly

2025-02-06 Thread Robert Foss
On Tue, 21 Jan 2025 15:01:51 +0800, Hermes Wu wrote: > Fix a typo where V compare incorrectly compares av[] with av[] itself, > which can result in HDCP failure. > > The loop of V compare is expected to iterate for 5 times > which compare V array form av[0][] to av[4][]. > It should check loop cou

Re: [PATCH] drm/bridge: cdns-mhdp8546: Remove unused functions

2024-11-11 Thread Robert Foss
On Sun, 06 Oct 2024 00:20:17 +0100, li...@treblig.org wrote: > cdns_mhdp_hdcp_set_lc() and cdns_mhdp_hdcp_set_public_key_param() > were added by commit > 6a3608eae6d3 ("drm: bridge: cdns-mhdp8546: Enable HDCP") > but never used. > > Remove them. > > [...] Applied, thanks! [1/1] drm/bridge: cdns

Re: [PATCH] drm/bridge: tc358767: Fix use of unadjusted mode in the driver

2024-10-28 Thread Robert Foss
On Sat, 26 Oct 2024 06:10:42 +0200, Marek Vasut wrote: > The driver configures mostly Pixel PLL from the clock cached in > local copy of the mode. Make sure the driver uses adjusted mode > which contains the updated Pixel PLL settings negotiated in > tc_dpi_atomic_check()/tc_edp_atomic_check(). >

Re: [PATCH 1/2] drm/imx: parallel-display: add legacy bridge Kconfig dependency

2024-10-22 Thread Robert Foss
On Tue, 15 Oct 2024 07:29:57 +, Arnd Bergmann wrote: > The driver now uses the legacy bridge helper code but can be configured > to get built without it: > > ERROR: modpost: "devm_imx_drm_legacy_bridge" > [drivers/gpu/drm/imx/ipuv3/parallel-display.ko] undefined! > > Add the required depende

Re: linux-next: build failure after merge of the drm-misc tree

2024-09-04 Thread Robert Foss
On Wed, Sep 4, 2024, 11:58 Jani Nikula wrote: > On Wed, 04 Sep 2024, Stephen Rothwell wrote: > > Hi all, > > > > After merging the drm-misc tree, today's linux-next build (x86_64 > > allmodconfig) failed like this: > > > > drivers/gpu/drm/bridge/ti-tdp158.c: In function 'tdp158_enable': > > driv

Re: [PATCH v5 0/2] Basic support for TI TDP158

2024-09-03 Thread Robert Foss
On Mon, 12 Aug 2024 16:51:00 +0200, Marc Gonzalez wrote: > TDP158 is an AC-coupled DVI / HDMI to TMDS level shifting Redriver. > > Like the TFP410, the TDP158 can be set up in 2 different ways: > 1) hard-coding its configuration settings using pin-strapping resistors > 2) placing it on an I2C bus,

Re: [PATCH v5 2/2] drm/bridge: add support for TI TDP158

2024-08-27 Thread Robert Foss
;, > GPIOD_OUT_LOW); > + if (IS_ERR(tdp158->enable)) > + return dev_err_probe(dev, PTR_ERR(tdp158->enable), "enable"); > + > + tdp158->bridge.of_node = dev->of_node; > + tdp158->bridge.funcs = &tdp158_bridge_funcs; > + tdp158->bridge.driver_private = tdp158; > + tdp158->dev = dev; > + > + return devm_drm_bridge_add(dev, &tdp158->bridge); > +} > + > +static const struct of_device_id tdp158_match_table[] = { > + { .compatible = "ti,tdp158" }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, tdp158_match_table); > + > +static struct i2c_driver tdp158_driver = { > + .probe = tdp158_probe, > + .driver = { > + .name = "tdp158", > + .of_match_table = tdp158_match_table, > + }, > +}; > +module_i2c_driver(tdp158_driver); > + > +MODULE_DESCRIPTION("TI TDP158 driver"); > +MODULE_LICENSE("GPL"); > > -- > 2.34.1 > Reviewed-by: Robert Foss

Re: [PATCH] drm: bridge: anx7625: Use of_property_read_variable_u8_array()

2024-08-19 Thread Robert Foss
On Wed, 31 Jul 2024 14:13:59 -0600, Rob Herring (Arm) wrote: > There's no need to get the length of an DT array property before > parsing the array. of_property_read_variable_u8_array() takes a minimum > and maximum length and returns the actual length (or error code). > > This is part of a larger

Re: [PATCH] drm/bridge: dw-hdmi: Simplify clock handling

2024-08-19 Thread Robert Foss
On Tue, 13 Aug 2024 00:23:21 +0300, Cristian Ciocaltea wrote: > Make use of devm_clk_get_enabled() to replace devm_clk_get() and > clk_prepare_enable() for isfr and iahb clocks, and drop the now > unnecessary calls to clk_disable_unprepare(). > > Similarly, use devm_clk_get_optional_enabled() help

Re: [PATCH] drm/bridge: lontium-lt8912b: Validate mode in drm_bridge_funcs::mode_valid()

2024-08-19 Thread Robert Foss
On Tue, 13 Aug 2024 17:16:37 +0800, Liu Ying wrote: > If the bridge is attached with the DRM_BRIDGE_ATTACH_NO_CONNECTOR flag set, > this driver won't initialize a connector and hence display mode won't be > validated in drm_connector_helper_funcs::mode_valid(). So, move the mode > validation from

Re: [PATCH 0/2] drm/bridge: lt9611uxc: require DRM_BRIDGE_ATTACH_NO_CONNECTOR

2024-08-06 Thread Robert Foss
On Mon, 01 Jul 2024 21:19:51 +0300, Dmitry Baryshkov wrote: > There are no in-kernel DTs that use Lontium LT9611UXC bridge and still > require creation of the drm_connector by the bridge on attachment. > Drop support for !DRM_BRIDGE_ATTACH_NO_CONNECTOR by the driver. > > Applied, thanks! [1/2]

Re: [PATCH] drm/bridge-connector: Fix double free in error handling paths

2024-08-05 Thread Robert Foss
On Thu, 11 Jul 2024 14:26:55 +0300, Cristian Ciocaltea wrote: > The recent switch to drmm allocation in drm_bridge_connector_init() may > cause double free on bridge_connector in some of the error handling > paths. > > Drop the explicit kfree() calls on bridge_connector. > > > [...] Applied, th

Re: [PATCH] drm/bridge-connector: Fix double free in error handling paths

2024-08-05 Thread Robert Foss
On Wed, Jul 31, 2024 at 10:03 PM Cristian Ciocaltea wrote: > > Hi Robert, > > On 7/18/24 3:02 PM, Robert Foss wrote: > > On Thu, 11 Jul 2024 14:26:55 +0300, Cristian Ciocaltea wrote: > >> The recent switch to drmm allocation in drm_bridge_connector_init() ma

Re: [PATCH 0/2] drm/bridge: lt9611uxc: require DRM_BRIDGE_ATTACH_NO_CONNECTOR

2024-07-30 Thread Robert Foss
-- > 1 file changed, 12 insertions(+), 91 deletions(-) > --- > base-commit: 74564adfd3521d9e322cfc345fdc132df80f3c79 > change-id: 20240625-lt9611uxc-next-bridge-5827d9b17fc1 > > Best regards, > -- > Dmitry Baryshkov > > Snoozing this for 2 weeks, since it is removing functionality. Reviewed-by: Robert Foss

Re: [PATCH] drm/bridge: it6505: Disable IRQ when powered off

2024-07-25 Thread Robert Foss
On Fri, 19 Jul 2024 19:05:36 +0800, Pin-yen Lin wrote: > When the bridge is powered off, disable the IRQ until the next power on > to workaround an interrupt storm on some badly-designed hardware. > > Applied, thanks! [1/1] drm/bridge: it6505: Disable IRQ when powered off https://cgit.fre

Re: [PATCH] drm/bridge-connector: Fix double free in error handling paths

2024-07-18 Thread Robert Foss
On Thu, 11 Jul 2024 14:26:55 +0300, Cristian Ciocaltea wrote: > The recent switch to drmm allocation in drm_bridge_connector_init() may > cause double free on bridge_connector in some of the error handling > paths. > > Drop the explicit kfree() calls on bridge_connector. > > > [...] Applied, th

Re: [PATCH v5 1/1] drm/bridge: Silence error messages upon probe deferral

2024-07-18 Thread Robert Foss
On Wed, 03 Jul 2024 14:27:15 +0200, Alexander Stein wrote: > When -EPROBE_DEFER is returned do not raise an error, but silently return > this error instead. Fixes error like this: > [drm:drm_bridge_attach] *ERROR* failed to attach bridge > /soc@0/bus@3080/mipi-dsi@30a0 to encoder None-34:

Re: [PATCH v4 1/5] drm/bridge: tc358767: Split tc_pxl_pll_en() into parameter calculation and enablement

2024-06-27 Thread Robert Foss
On Tue, 25 Jun 2024 14:02:30 +0200, Marek Vasut wrote: > Split tc_pxl_pll_en() into tc_pxl_pll_calc() which does only Pixel PLL > parameter calculation and tc_pxl_pll_en() which calls tc_pxl_pll_calc() > and then configures the Pixel PLL register. > > This is a preparatory patch for further rework

Re: [PATCH v1] drm/bridge: it6505: update usleep_range for RC circuit charge time

2024-06-10 Thread Robert Foss
On Tue, 4 Jun 2024 10:44:05 +0800, kuro wrote: > From: Kuro Chung > > The spec of timing between IVDD/OVDD and SYSRTEN is 10ms, but SYSRSTN RC > circuit need at least 25ms for rising time, update for match spec > > Applied, thanks! [1/1] drm/bridge: it6505: update usleep_range for RC circuit

Re: [PATCH V3 1/2] drm/bridge: samsung-dsim: Set P divider based on min/max of fin pll

2024-06-10 Thread Robert Foss
On Sat, 1 Jun 2024 09:41:01 -0500, Adam Ford wrote: > The P divider should be set based on the min and max values of > the fin pll which may vary between different platforms. > These ranges are defined per platform, but hard-coded values > were used instead which resulted in a smaller range availab

Re: [PATCH] drm/bridge: tc358767: Check if fully initialized before signalling HPD event via IRQ

2024-06-10 Thread Robert Foss
On Fri, 31 May 2024 22:33:12 +0200, Marek Vasut wrote: > Make sure the connector is fully initialized before signalling any > HPD events via drm_kms_helper_hotplug_event(), otherwise this may > lead to NULL pointer dereference. > > Applied, thanks! [1/1] drm/bridge: tc358767: Check if fully ini

Re: [PATCH] drm/bridge: tc358767: Fix comment in tc_edp_mode_valid

2024-06-10 Thread Robert Foss
On Fri, 31 May 2024 22:32:01 +0200, Marek Vasut wrote: > Fix comment copy-paste error in tc_edp_mode_valid(), this function > is validating DP/eDP clock, not DPI clock frequency. Update the > comment to match. No functional change. > > Applied, thanks! [1/1] drm/bridge: tc358767: Fix comment in

Re: [PATCH 0/2] drm bridge: drop drm_bridge_chain_mode_fixup.

2024-06-10 Thread Robert Foss
On Fri, 31 May 2024 22:37:44 +0200, Sam Ravnborg wrote: > I had a few bridge related patches in an old branch. > > They were last posted here almost one year ago: > https://lore.kernel.org/dri-devel/20220717174454.46616-1-...@ravnborg.org/ > > The following two patches gets rid of drm_bridge_chai

Re: [PATCH 14/14] drm/bridge: analogix_dp: handle AUX transfer timeouts

2024-06-10 Thread Robert Foss
S_UNKNOWN_ERROR (0x3 << 0) > +#define AUX_STATUS_MUCH_DEFER_ERROR(0x4 << 0) > +#define AUX_STATUS_TX_SHORT_ERROR (0x5 << 0) > +#define AUX_STATUS_RX_SHORT_ERROR (0x6 << 0) > +#define AUX_STATUS_NACK_WITHOUT_M_ERROR

Re: [PATCH 13/14] drm/bridge: analogix_dp: only read AUX status when an error occured

2024-06-10 Thread Robert Foss
ror happened: %#x (%d)\n", > -status_reg & AUX_STATUS_MASK, !!(reg & AUX_ERR)); > +aux_status, !!(reg & AUX_ERR)); > goto aux_error; > } > > -- > 2.39.2 > Reviewed-by: Robert Foss

Re: [PATCH 12/14] drm/bridge: analogix_dp: simplify and correct PLL lock checks

2024-06-10 Thread Robert Foss
); > } > > -enum pll_status analogix_dp_get_pll_lock_status(struct analogix_dp_device > *dp) > +int analogix_dp_wait_pll_locked(struct analogix_dp_device *dp) > { > - u32 reg; > + u32 val; > > - reg = readl(dp->reg_base + ANALOGIX_DP_DEBUG_CTL); > - if (reg & PLL_LOCK) > - return PLL_LOCKED; > - else > - return PLL_UNLOCKED; > + return readl_poll_timeout(dp->reg_base + ANALOGIX_DP_DEBUG_CTL, val, > + val & PLL_LOCK, 120, > + 120 * DP_TIMEOUT_LOOP_COUNT); > } > > void analogix_dp_set_pll_power_down(struct analogix_dp_device *dp, bool > enable) > -- > 2.39.2 > Reviewed-by: Robert Foss

Re: [PATCH 11/14] drm/bridge: analogix_dp: don't wait for PLL lock too early

2024-06-10 Thread Robert Foss
tus\n"); > - return -ETIMEDOUT; > - } > - usleep_range(10, 20); > - } > - } > + analogix_dp_set_pll_power_down(dp, 0); > > /* Enable Serdes FIFO function and Link symbol clock domain module */ > reg = readl(dp->reg_base + ANALOGIX_DP_FUNC_EN_2); > -- > 2.39.2 > Reviewed-by: Robert Foss

Re: [PATCH 10/14] drm/bridge: analogix_dp: move macro reset after link bandwidth setting

2024-06-10 Thread Robert Foss
On Tue, May 7, 2024 at 3:07 PM Robert Foss wrote: > > On Fri, May 3, 2024 at 5:13 PM Lucas Stach wrote: > > > > Setting the link bandwidth may change the PLL parameters, which will cause > > the PLL to go out of lock, so make sure to apply the MACRO_RST, which > &g

Re: [PATCH v2] drm/bridge: it6505: remove unnecessary NULL checks

2024-06-10 Thread Robert Foss
On Mon, 10 Jun 2024 13:50:26 +0300, Dan Carpenter wrote: > Smatch complains correctly that the NULL checking isn't consistent: > > drivers/gpu/drm/bridge/ite-it6505.c:2583 it6505_poweron() > error: we previously assumed 'pdata->pwr18' could be null > (see line 2569) > > These the ->pw

Re: [PATCH 1/3] drm/bridge: analogix_dp: properly handle zero sized AUX transactions

2024-06-04 Thread Robert Foss
On Mon, 18 Mar 2024 21:39:23 +0100, Lucas Stach wrote: > Address only transactions without any data are valid and should not > be flagged as short transactions. Simply return the message size when > no transaction errors occured. > > Fixed checkpatch --strict formatting suggestions and applied,

Re: [PATCH 3/3] drm/bridge: analogix_dp: don't adjust further when clock recovery succeeded

2024-05-29 Thread Robert Foss
RE_EMPHASIS_LEVEL_3) { > + dev_err(dp->dev, "CR Max reached (%d,%d,%d)\n", > + dp->link_train.cr_loop[lane], > + voltage_swing, pre_emphasis); > + analogix_dp_reduce_link_rate(dp); > + return -EIO; > } > } > > -- > 2.39.2 > With the above corrected or checked, feel free to add my r-b. Reviewed-by: Robert Foss

Re: [PATCH 2/3] drm/bridge: analogix_dp: simplify analogix_dp_{set/get}_lane_link_training helpers

2024-05-29 Thread Robert Foss
+ ANALOGIX_DP_LN1_LINK_TRAINING_CTL); > -} > - > -void analogix_dp_set_lane2_link_training(struct analogix_dp_device *dp, > -u32 training_lane) > -{ > - u32 reg; > - > - reg = training_lane; > - writel(reg, dp->reg_base + ANALOGIX_DP_LN2_LINK_TRAINING_CTL); > -} > - > -void analogix_dp_set_lane3_link_training(struct analogix_dp_device *dp, > -u32 training_lane) > -{ > - u32 reg; > - > - reg = training_lane; > - writel(reg, dp->reg_base + ANALOGIX_DP_LN3_LINK_TRAINING_CTL); > -} > - > -u32 analogix_dp_get_lane0_link_training(struct analogix_dp_device *dp) > -{ > - return readl(dp->reg_base + ANALOGIX_DP_LN0_LINK_TRAINING_CTL); > -} > - > -u32 analogix_dp_get_lane1_link_training(struct analogix_dp_device *dp) > -{ > - return readl(dp->reg_base + ANALOGIX_DP_LN1_LINK_TRAINING_CTL); > -} > - > -u32 analogix_dp_get_lane2_link_training(struct analogix_dp_device *dp) > -{ > - return readl(dp->reg_base + ANALOGIX_DP_LN2_LINK_TRAINING_CTL); > -} > - > -u32 analogix_dp_get_lane3_link_training(struct analogix_dp_device *dp) > -{ > - return readl(dp->reg_base + ANALOGIX_DP_LN3_LINK_TRAINING_CTL); > -} > - > void analogix_dp_reset_macro(struct analogix_dp_device *dp) > { > u32 reg; > -- > 2.39.2 > Reviewed-by: Robert Foss

Re: [PATCH 1/3] drm/bridge: analogix_dp: properly handle zero sized AUX transactions

2024-05-29 Thread Robert Foss
> @@ -1144,7 +1141,7 @@ ssize_t analogix_dp_transfer(struct analogix_dp_device > *dp, > (msg->request & ~DP_AUX_I2C_MOT) == DP_AUX_NATIVE_READ) > msg->reply = DP_AUX_NATIVE_REPLY_ACK; > > - return num_transferred > 0 ? num_transferred : -EBUSY; > + return msg->size; > > aux_error: > /* if aux err happen, reset aux */ > -- > 2.39.2 > Reviewed-by: Robert Foss

Re: [PATCH v2 3/3] drm/bridge: tc358767: Support write-only registers

2024-05-29 Thread Robert Foss
; .volatile_table = &tc_volatile_table, > .precious_table = &tc_precious_table, > - .wr_table = &tc_writeable_table, > .reg_format_endian = REGMAP_ENDIAN_BIG, > .val_format_endian = REGMAP_ENDIAN_LITTLE, > }; > -- > 2.34.1 > Reviewed-by: Robert Foss

Re: [PATCH v2 2/3] drm/bridge: tc358767: Only print GPIO debug output if they actually occur

2024-05-29 Thread Robert Foss
f (h || lc) { > + dev_dbg(tc->dev, "GPIO%d: %s %s\n", tc->hpd_pin, > + h ? "H" : "", lc ? "LC" : ""); > drm_kms_helper_hotplug_event(tc->bridge.dev); > + } > } > > regmap_write(tc->regmap, INTSTS_G, val); > -- > 2.34.1 > > Reviewed-by: Robert Foss

Re: [PATCH v13] drm/bridge: it6505: fix hibernate to resume no display issue

2024-05-22 Thread Robert Foss
On Wed, 22 May 2024 14:55:28 +0800, kuro wrote: > From: Kuro Chung > > When the system power resumes, the TTL input of IT6505 may experience > some noise before the video signal stabilizes, necessitating a video > reset. This patch is implemented to prevent a loop of video error > interrupts, whi

Re: [PATCH v12] drm/bridge: it6505: fix hibernate to resume no display issue

2024-05-21 Thread Robert Foss
Hey, Thanks for spinning another few revisions. On Tue, May 21, 2024 at 9:51 AM kuro wrote: > > From: Kuro Chung > > When the system power resumes, the TTL input of IT6505 may experience > some noise before the video signal stabilizes, necessitating a video > reset. This patch is implemented to

Re: [PATCH] drm/bridge: tc358767: Enable FRMSYNC timing generator

2024-05-21 Thread Robert Foss
On Mon, 13 May 2024 04:16:04 +0200, Marek Vasut wrote: > TC9595 datasheet Video Path0 Control (VPCTRL0) Register bit FRMSYNC > description > says "This bit should be disabled only in video mode transmission where Host > transmits video timing together with video data and where pixel clock source >

Re: [PATCH v7 1/1] drm/bridge: it6505: fix hibernate to resume no display issue

2024-05-13 Thread Robert Foss
On Mon, May 13, 2024 at 7:42 PM Robert Foss wrote: > > On Mon, May 6, 2024 at 11:36 AM kuro wrote: > > > > From: Kuro > > > > ITE added a FIFO reset bit for input video. When system power resume, > > the TTL input of it6505 may get some noise before vide

Re: [PATCH v7 1/1] drm/bridge: it6505: fix hibernate to resume no display issue

2024-05-13 Thread Robert Foss
{ BIT_INT_HDCP_KSV_CHECK, it6505_irq_hdcp_ksv_check }, > { BIT_INT_AUDIO_FIFO_ERROR, it6505_irq_audio_fifo_error }, > { BIT_INT_LINK_TRAIN_FAIL, it6505_irq_link_train_fail }, > - { BIT_INT_VID_FIFO_ERROR, it6505_irq_video_fifo_error }, > - { BIT_INT_IO_FIFO_OVERFLOW, it6505_irq_io_latch_fifo_overflow > }, > }; > int int_status[3], i; > > @@ -2550,6 +2574,7 @@ static irqreturn_t it6505_int_threaded_handler(int > unused, void *data) > if (it6505_test_bit(irq_vec[i].bit, (unsigned int > *)int_status)) > irq_vec[i].handler(it6505); > } > + it6505_irq_video_handler(it6505, (unsigned int *) int_status); > } > > pm_runtime_put_sync(dev); > -- > 2.25.1 > Reviewed-by: Robert Foss

Re: [RESEND 0/6] drm: struct drm_edid conversions

2024-05-13 Thread Robert Foss
On Fri, 10 May 2024 16:26:03 +0300, Jani Nikula wrote: > Resend of the remaining patches from [1]. > > BR, > Jani. > > [1] https://lore.kernel.org/r/cover.1713273659.git.jani.nik...@intel.com > > [...] Fixed checkpatch issue in "drm/bochs: switch to struct drm_edid" Applied, thanks! [1/6] drm

Re: [RESEND 3/6] drm/bridge: anx7625: use struct drm_edid more

2024-05-13 Thread Robert Foss
On Fri, May 10, 2024 at 3:26 PM Jani Nikula wrote: > > Prefer struct drm_edid based functions over struct edid. > > Signed-off-by: Jani Nikula > > --- > > Cc: Andrzej Hajda > Cc: Neil Armstrong > Cc: Robert Foss > Cc: Laurent Pinchart > Cc:

Re: [RESEND 2/6] drm/bridge/analogix/anx78xx: switch to struct drm_edid

2024-05-13 Thread Robert Foss
On Fri, May 10, 2024 at 3:26 PM Jani Nikula wrote: > > Prefer struct drm_edid based functions over struct edid. > > Signed-off-by: Jani Nikula > > --- > > Cc: Andrzej Hajda > Cc: Neil Armstrong > Cc: Robert Foss > Cc: Laurent Pinchart > Cc:

Re: [RESEND 1/6] drm/bridge/analogix/anx6345: switch to struct drm_edid

2024-05-13 Thread Robert Foss
On Fri, May 10, 2024 at 3:26 PM Jani Nikula wrote: > > Prefer struct drm_edid based functions over struct edid. > > Signed-off-by: Jani Nikula > > --- > > Cc: Andrzej Hajda > Cc: Neil Armstrong > Cc: Robert Foss > Cc: Laurent Pinchart > Cc:

Re: [RESEND 4/6] drm/i2c: tda998x: switch to struct drm_edid

2024-05-13 Thread Robert Foss
connector, edid); > - priv->sink_has_audio = drm_detect_monitor_audio(edid); > + n = drm_edid_connector_add_modes(connector); > + priv->sink_has_audio = connector->display_info.has_audio; > mutex_unlock(&priv->audio_mutex); > > - kfree(edid); > + drm_edid_free(drm_edid); > > return n; > } > -- > 2.39.2 > Reviewed-by: Robert Foss

Re: [RESEND 5/6] drm/bochs: switch to struct drm_edid

2024-05-13 Thread Robert Foss
_device *dev) > drm_connector_helper_add(connector, > &bochs_connector_connector_helper_funcs); > > bochs_hw_load_edid(bochs); > - if (bochs->edid) { > + if (bochs->drm_edid) { > DRM_INFO("Found EDID data blob.\n"); > drm_connector_attach_edid_property(connector); > - drm_connector_update_edid_property(connector, bochs->edid); > + drm_edid_connector_update(&bochs->connector, bochs->drm_edid); > } > } > > -- > 2.39.2 > Reviewed-by: Robert Foss

Re: [RESEND 6/6] drm/virtio: switch to struct drm_edid

2024-05-13 Thread Robert Foss
rty(&output->conn, new_edid); > + new_edid = drm_edid_read_custom(&output->conn, virtio_get_edid_block, > resp); > + drm_edid_connector_update(&output->conn, new_edid); > > spin_lock(&vgdev->display_info_lock); > - old_edid = output->edid; > - output->edid = new_edid; > + old_edid = output->drm_edid; > + output->drm_edid = new_edid; > spin_unlock(&vgdev->display_info_lock); > > - kfree(old_edid); > + drm_edid_free(old_edid); > wake_up(&vgdev->resp_wq); > } > > -- > 2.39.2 > Reviewed-by: Robert Foss

Re: [RESEND 4/6] drm/amdgpu: remove amdgpu_connector_edid() and stop using edid_blob_ptr

2024-05-13 Thread Robert Foss
sad_count = > drm_edid_to_speaker_allocation(amdgpu_connector_edid(connector), &sadb); > + sad_count = drm_edid_to_speaker_allocation(amdgpu_connector->edid, > &sadb); > if (sad_count < 0) { > DRM_ERROR("Couldn't read Speaker Allocation Data Block: > %d\n", sad_count); > sad_count = 0; > @@ -1340,7 +1340,7 @@ static void dce_v8_0_audio_write_sad_regs(struct > drm_encoder *encoder) > return; > } > > - sad_count = drm_edid_to_sad(amdgpu_connector_edid(connector), &sads); > + sad_count = drm_edid_to_sad(amdgpu_connector->edid, &sads); > if (sad_count < 0) > DRM_ERROR("Couldn't read SADs: %d\n", sad_count); > if (sad_count <= 0) > -- > 2.39.2 > Reviewed-by: Robert Foss

Re: [RESEND 3/6] drm/radeon: remove radeon_connector_edid() and stop using edid_blob_ptr

2024-05-13 Thread Robert Foss
coder_id(struct drm_connecto > extern bool radeon_connector_is_dp12_capable(struct drm_connector > *connector); > extern int radeon_get_monitor_bpc(struct drm_connector *connector); > > -extern struct edid *radeon_connector_edid(struct drm_connector *connector); > - > extern void radeon_connector_hotplug(struct drm_connector *connector); > extern int radeon_dp_mode_valid_helper(struct drm_connector *connector, >struct drm_display_mode *mode); > -- > 2.39.2 > Reviewed-by: Robert Foss

Re: [RESEND 2/6] drm/radeon: convert to using is_hdmi and has_audio from display info

2024-05-13 Thread Robert Foss
89d..0f723292409e 100644 > --- a/drivers/gpu/drm/radeon/radeon_encoders.c > +++ b/drivers/gpu/drm/radeon/radeon_encoders.c > @@ -386,7 +386,7 @@ bool radeon_dig_monitor_is_duallink(struct drm_encoder > *encoder, > case DRM_MODE_CONNECTOR_HDMIB: > if (radeon_connector->use_digital) { > /* HDMI 1.3 supports up to 340 Mhz over single link */ > - if (ASIC_IS_DCE6(rdev) && > drm_detect_hdmi_monitor(radeon_connector_edid(connector))) { > + if (ASIC_IS_DCE6(rdev) && > connector->display_info.is_hdmi) { > if (pixel_clock > 34) > return true; > else > @@ -408,7 +408,7 @@ bool radeon_dig_monitor_is_duallink(struct drm_encoder > *encoder, > return false; > else { > /* HDMI 1.3 supports up to 340 Mhz over single link */ > - if (ASIC_IS_DCE6(rdev) && > drm_detect_hdmi_monitor(radeon_connector_edid(connector))) { > + if (ASIC_IS_DCE6(rdev) && > connector->display_info.is_hdmi) { > if (pixel_clock > 34) > return true; > else > -- > 2.39.2 > Reviewed-by: Robert Foss

Re: drm/bridge: adv7511: Attach next bridge without creating connector

2024-05-13 Thread Robert Foss
I connector > already created for us, we should pass DRM_BRIDGE_ATTACH_NO_CONNECTOR > from the root KMS driver side. Which is to forbidden all potential > drm bridge drivers to create a connector in the middle. > > The KMS display driver side could parse the DT to know if there is > a hdmi connector, or merely just hdmi connector device node, or > something else. > > However, other maintainer and/or reviewer's opinion are of cause > more valuable. I send a A-b because I thought the bug is urgency > and it's probably more important to solve this bug first. And > maybe you can Cc: if you like. > Reviewed-by: Robert Foss

Re: [PATCH] drm/bridge: tc358767: Enable FRMSYNC timing generator

2024-05-13 Thread Robert Foss
drzej Hajda > Cc: Daniel Vetter > Cc: David Airlie > Cc: Frieder Schrempf > Cc: Jernej Skrabec > Cc: Jonas Karlman > Cc: Laurent Pinchart > Cc: Lucas Stach > Cc: Maarten Lankhorst > Cc: Maxime Ripard > Cc: Michael Walle > Cc: Neil Armstrong > Cc: Robert

Re: [PATCH v2 00/12] Remove redundant checks on existence of 'bridge->encoder'

2024-05-13 Thread Robert Foss
On Mon, 13 May 2024 23:30:57 +0800, Sui Jingfeng wrote: > The checks on the existence of bridge->encoder in the implementation of > drm_bridge_funcs::attach() is not necessary, as it has already been checked > in the drm_bridge_attach() function call by previous bridge or KMS driver. > The drm_brid

Re: [PATCH] drm/drm-bridge.c: Drop conditionals around of_node pointers

2024-05-10 Thread Robert Foss
On Wed, 8 May 2024 02:00:00 +0800, Sui Jingfeng wrote: > Having conditional around the of_node pointer of the drm_bridge structure > is not necessary, since drm_bridge structure always has the of_node as its > member. > > Let's drop the conditional to get a better looks, please also note that > th

Re: [PATCH 00/14] improve Analogix DP AUX channel handling

2024-05-07 Thread Robert Foss
On Fri, May 3, 2024 at 5:12 PM Lucas Stach wrote: > > Currently the AUX channel support in the Analogix DP driver is severely > limited as the AUX block of the bridge is only initialized when the video > link is to be enabled. This is okay for the purposes of link training, > but does not allow to

Re: [PATCH 10/14] drm/bridge: analogix_dp: move macro reset after link bandwidth setting

2024-05-07 Thread Robert Foss
On Fri, May 3, 2024 at 5:13 PM Lucas Stach wrote: > > Setting the link bandwidth may change the PLL parameters, which will cause > the PLL to go out of lock, so make sure to apply the MACRO_RST, which > according to the comment is required to be pulsed after the PLL is locked. > > Signed-off-by: L

Re: [PATCH 09/14] drm/bridge: analogix_dp: remove PLL lock check from analogix_dp_config_video

2024-05-07 Thread Robert Foss
On Fri, May 3, 2024 at 5:13 PM Lucas Stach wrote: > > This check is way too late in the DP enable flow. The PLL must be locked > much earlier, before any link training can happen. If the PLL is unlocked > at that point in time there is something seriously wrong in the enable flow. > > Signed-off-b

Re: [PATCH 08/14] drm/bridge: analogix_dp: move basic controller init into runtime PM

2024-05-07 Thread Robert Foss
gt; @@ -1726,6 +1720,8 @@ int analogix_dp_resume(struct analogix_dp_device *dp) > > phy_power_on(dp->phy); > > + analogix_dp_init_dp(dp); > + > return 0; > } > EXPORT_SYMBOL_GPL(analogix_dp_resume); > -- > 2.39.2 > Reviewed-by: Robert Foss

Re: [PATCH 07/14] drm/bridge: analogix_dp: move platform and PHY power handling into runtime PM

2024-05-07 Thread Robert Foss
off(dp->plat_data); > + > clk_disable_unprepare(dp->clock); > > return 0; > @@ -1729,6 +1721,11 @@ int analogix_dp_resume(struct analogix_dp_device *dp) > return ret; > } > > + if (dp->plat_data->power_on) > + dp->plat_data->power_on(dp->plat_data); > + > + phy_power_on(dp->phy); > + > return 0; > } > EXPORT_SYMBOL_GPL(analogix_dp_resume); > -- > 2.39.2 > Reviewed-by: Robert Foss

Re: [PATCH 06/14] drm/bridge: analogix_dp: remove clk handling from analogix_dp_set_bridge

2024-05-07 Thread Robert Foss
(dp, POWER_ALL, 1); > phy_power_off(dp->phy); > > - clk_disable_unprepare(dp->clock); > - > pm_runtime_put_sync(dp->dev); > > ret = analogix_dp_prepare_panel(dp, false, true); > -- > 2.39.2 > Reviewed-by: Robert Foss

Re: [PATCH 05/14] drm/bridge: analogix_dp: remove unused analogix_dp_remove

2024-05-07 Thread Robert Foss
logix_dp_device * > analogix_dp_probe(struct device *dev, struct analogix_dp_plat_data > *plat_data); > int analogix_dp_bind(struct analogix_dp_device *dp, struct drm_device > *drm_dev); > void analogix_dp_unbind(struct analogix_dp_device *dp); > -void analogix_dp_remove(struct analogix_dp_device *dp); > > int analogix_dp_start_crc(struct drm_connector *connector); > int analogix_dp_stop_crc(struct drm_connector *connector); > -- > 2.39.2 > Reviewed-by: Robert Foss

Re: [PATCH 04/14] drm/bridge: analogix_dp: handle clock via runtime PM

2024-05-07 Thread Robert Foss
-{ > - clk_disable_unprepare(dp->clock); > - return 0; > -} > -EXPORT_SYMBOL_GPL(analogix_dp_suspend); > - > -int analogix_dp_resume(struct analogix_dp_device *dp) > -{ > - int ret; > - > - ret = clk_prepare_enable(dp->clock); > - if (ret < 0) { > - DRM_ERROR("Failed to prepare_enable the clock clk [%d]\n", > ret); > - return ret; > - } > - > - return 0; > -} > -EXPORT_SYMBOL_GPL(analogix_dp_resume); > -#endif > - > int analogix_dp_start_crc(struct drm_connector *connector) > { > struct analogix_dp_device *dp = to_dp(connector); > -- > 2.39.2 > Reviewed-by: Robert Foss

Re: [PATCH 03/14] drm/bridge: analogix_dp: register AUX bus after enabling runtime PM

2024-05-07 Thread Robert Foss
ister_aux; > } > > return 0; > > +err_unregister_aux: > + drm_dp_aux_unregister(&dp->aux); > err_disable_pm_runtime: > pm_runtime_dont_use_autosuspend(dp->dev); > pm_runtime_disable(dp->dev); > - drm_dp_aux_unregister(&dp->aux); > > return ret; > } > -- > 2.39.2 > Reviewed-by: Robert Foss

Re: [PATCH 02/14] drm/rockchip: analogix_dp: add runtime PM handling

2024-05-07 Thread Robert Foss
eg = RK3399_GRF_SOC_CON20, > @@ -485,7 +480,7 @@ struct platform_driver rockchip_dp_driver = { > .remove_new = rockchip_dp_remove, > .driver = { >.name = "rockchip-dp", > - .pm = &rockchip_dp_pm_ops, > + .pm = pm_ptr(&rockchip_dp_pm_ops), >.of_match_table = rockchip_dp_dt_ids, > }, > }; > -- > 2.39.2 > Reviewed-by: Robert Foss

Re: [PATCH 01/14] drm/bridge: analogix_dp: remove unused platform power_on_end callback

2024-05-07 Thread Robert Foss
include/drm/bridge/analogix_dp.h > +++ b/include/drm/bridge/analogix_dp.h > @@ -29,8 +29,7 @@ struct analogix_dp_plat_data { > struct drm_connector *connector; > bool skip_connector; > > - int (*power_on_start)(struct analogix_dp_plat_data *); > - int (*power_on_end)(struct analogix_dp_plat_data *); > + int (*power_on)(struct analogix_dp_plat_data *); > int (*power_off)(struct analogix_dp_plat_data *); > int (*attach)(struct analogix_dp_plat_data *, struct drm_bridge *, > struct drm_connector *); > -- > 2.39.2 > Reviewed-by: Robert Foss

Re: [PATCH 2/2] drm/bridge: anx7625: Change TDM setting accroding to dt property

2024-05-06 Thread Robert Foss
On Thu, May 2, 2024 at 11:03 AM Hsin-Te Yuan wrote: > > For some SoCs, the TDM setting is not to shift the first audio data bit, > which is not the default setting of anx7625. In such cases, the TDM > setting should be changed according to the device tree property. > > Signed-off-by: Hsin-Te Yuan

Re: [PATCH RESEND] Revert "drm/bridge: ti-sn65dsi83: Fix enable error path"

2024-04-29 Thread Robert Foss
On Fri, 26 Apr 2024 14:22:59 +0200, Luca Ceresoli wrote: > This reverts commit 8a91b29f1f50ce7742cdbe5cf11d17f128511f3f. > > The regulator_disable() added by the original commit solves one kind of > regulator imbalance but adds another one as it allows the regulator to be > disabled one more time

Re: [PATCH V2] drm/bridge: imx: Fix unmet depenency for PHY_FSL_SAMSUNG_HDMI_PHY

2024-04-25 Thread Robert Foss
On Mon, 22 Apr 2024 05:33:52 -0500, Adam Ford wrote: > When enabling i.MX8MP DWC HDMI driver, it automatically selects > PHY_FSL_SAMSUNG_HDMI_PHY, since it wont' work without the phy. > This may cause some Kconfig warnings during various build tests. > Fix this by implying the phy instead of select

Re: [PATCH 1/2] drm/print: drop include debugfs.h and include where needed

2024-04-25 Thread Robert Foss
King > Cc: David Airlie > Cc: Daniel Vetter > Cc: Andrzej Hajda > Cc: Neil Armstrong > Cc: Robert Foss > Cc: Laurent Pinchart > Cc: Jonas Karlman > Cc: Jernej Skrabec > Cc: Maarten Lankhorst > Cc: Maxime Ripard > Cc: Thomas Zimmermann > Cc: Jani Nikula

Re: [PATCH v5 00/10] Improvments for tc358775 with support for tc358765

2024-04-23 Thread Robert Foss
On Sun, 25 Feb 2024 08:19:29 +0200, Tony Lindgren wrote: > Here are v5 patches to improve tc358775 driver and add support for > tc358765. > > Regards, > > Tony > > [...] Thanks for the really nice series, sorry about the delay in applying it. Applied, thanks! [01/10] dt-bindings: display: bri

Re: [PATCH v6 1/1] drm/bridge: it6505: fix hibernate to resume no display issue

2024-04-23 Thread Robert Foss
On Tue, Apr 23, 2024 at 10:16 AM kuro wrote: > > From: Kuro > > ITE added a FIFO reset bit for input video. When system power resume, > the TTL input of it6505 may get some noise before video signal stable > and the hardware function reset is required. > But the input FIFO reset will also trigger

Re: [PATCH] drm/stm: dsi: relax mode_valid clock tolerance

2024-04-23 Thread Robert Foss
*/ > > - if (px_clock_hz < target_px_clock_hz - CLK_TOLERANCE_HZ || > > - px_clock_hz > target_px_clock_hz + CLK_TOLERANCE_HZ) > > + if (px_clock_hz < mult_frac(target_px_clock_hz, 995, 1000) || > > + px_clock_hz > mult_frac(target_px_clock_hz, 1005, 1000)) > > return MODE_CLOCK_RANGE; > > > > /* sync packets are codes as DSI short packets (4 bytes) */ > > -- > > 2.44.0 > > > Reviewed-by: Robert Foss

Re: [PATCH v2 1/2] drm/print: drop include debugfs.h and include where needed

2024-04-18 Thread Robert Foss
Ripard > Link: > https://patchwork.freedesktop.org/patch/msgid/20240410141434.157908-1-jani.nik...@intel.com > Signed-off-by: Jani Nikula > > --- > > Cc: Jacek Lawrynowicz > Cc: Stanislaw Gruszka > Cc: Oded Gabbay > Cc: Andrzej Hajda > Cc: Neil Armstrong >

Re: [PATCH RESEND v3] drm/bridge: anx7625: Update audio status while detecting

2024-04-16 Thread Robert Foss
On Tue, 16 Apr 2024 07:21:35 +, Hsin-Te Yuan wrote: > Previously, the audio status was not updated during detection, leading > to a persistent audio despite hot plugging events. To resolve this > issue, update the audio status during detection. > > Applied, thanks! [1/1] drm/bridge: anx7625

Re: [PATCH v2] drm: bridge: cdns-mhdp8546: Fix possible null pointer dereference

2024-04-16 Thread Robert Foss
Hey Aleksandr, On Fri, Apr 12, 2024 at 10:40 AM Aleksandr Mishin wrote: > > In cdns_mhdp_atomic_enable(), the return value of drm_mode_duplicate() is > assigned to mhdp_state->current_mode, and there is a dereference of it in > drm_mode_set_name(), which will lead to a NULL pointer dereference on

Re: [PATCH v3 0/9] drm: Switch from dev_err to dev_err_probe for missing DSI host error path

2024-04-16 Thread Robert Foss
On Mon, 15 Apr 2024 17:49:28 -0400, Nícolas F. R. A. Prado wrote: > This series changes every occurrence of the following pattern: > > dsi_host = of_find_mipi_dsi_host_by_node(dsi); > if (!dsi_host) { > dev_err(dev, "failed to find dsi host\n"); > return -EP

Re: [PATCH] drm/bridge: imx8mp-hdmi-tx: Convert to platform remove callback returning void

2024-04-10 Thread Robert Foss
On Mon, 4 Mar 2024 10:10:06 +0100, Uwe Kleine-König wrote: > The .remove() callback for a platform driver returns an int which makes > many driver authors wrongly assume it's possible to do error handling by > returning an error code. However the value returned is ignored (apart > from emitting a w

Re: [PATCH] drm/bridge: imx8mp-hdmi-pvi: Convert to platform remove callback returning void

2024-04-10 Thread Robert Foss
On Mon, 4 Mar 2024 10:05:56 +0100, Uwe Kleine-König wrote: > The .remove() callback for a platform driver returns an int which makes > many driver authors wrongly assume it's possible to do error handling by > returning an error code. However the value returned is ignored (apart > from emitting a w

Re: [PATCH] drm: bridge: cdns-mhdp8546: Fix possible null pointer dereference

2024-04-08 Thread Robert Foss
On Mon, 8 Apr 2024 15:58:10 +0300, Aleksandr Mishin wrote: > In cdns_mhdp_atomic_enable(), the return value of drm_mode_duplicate() is > assigned to mhdp_state->current_mode, and there is a dereference of it in > drm_mode_set_name(), which will lead to a NULL pointer dereference on > failure of drm

Re: [PATCH v3 2/2] drm/bridge: adv7511: get edid in hpd_work to update CEC phys address

2024-03-05 Thread Robert Foss
Sorry to ask for this again, but this series has non-trivial merge conflicts with upstream again. Could you rebase it and send out an updated version?

Re: [PATCH v2 1/2] drm/bridge: Fix improper bridge init order with pre_enable_prev_first

2024-03-05 Thread Robert Foss
On Tue, 28 Mar 2023 22:37:51 +0530, Jagan Teki wrote: > For a given bridge pipeline if any bridge sets pre_enable_prev_first > flag then the pre_enable for the previous bridge will be called before > pre_enable of this bridge and opposite is done for post_disable. > > These are the potential bridg

Re: [PATCH v2 1/2] drm/bridge: Fix improper bridge init order with pre_enable_prev_first

2024-03-05 Thread Robert Foss
On Thu, Feb 29, 2024 at 12:39 PM Frieder Schrempf wrote: > > Hi, > > On 28.03.23 19:07, Jagan Teki wrote: > > For a given bridge pipeline if any bridge sets pre_enable_prev_first > > flag then the pre_enable for the previous bridge will be called before > > pre_enable of this bridge and opposite i

Re: [PATCH v2] drm/tegra: Remove existing framebuffer only if we support display

2024-02-26 Thread Robert Foss
On Fri, 23 Feb 2024 16:03:33 +0100, Thierry Reding wrote: > From: Thierry Reding > > Tegra DRM doesn't support display on Tegra234 and later, so make sure > not to remove any existing framebuffers in that case. > > v2: - add comments explaining how this situation can come about > - clear DRI

Re: [PATCH v2] drm/tegra: Remove existing framebuffer only if we support display

2024-02-26 Thread Robert Foss
On Mon, Feb 26, 2024 at 12:36 PM Javier Martinez Canillas wrote: > > Thomas Zimmermann writes: > > > Hi > > > > Am 23.02.24 um 16:03 schrieb Thierry Reding: > >> From: Thierry Reding > >> > >> Tegra DRM doesn't support display on Tegra234 and later, so make sure > >> not to remove any existing f

Re: [PATCH v2] drm/bridge: adv7511: fix crash on irq during probe

2024-02-21 Thread Robert Foss
On Mon, 19 Feb 2024 21:21:47 +0100, Alvin Šipraga wrote: > From: Mads Bligaard Nielsen > > Moved IRQ registration down to end of adv7511_probe(). > > If an IRQ already is pending during adv7511_probe > (before adv7511_cec_init) then cec_received_msg_ts > could crash using uninitialized data: >

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