Add support for multiple register ranges with SoC specific names. Signed-off-by: Philipp Zabel <p.za...@pengutronix.de> --- Changes since v2 [1]: - Move array of reg_names out of struct hantro_variant - Use ARRAY_SIZE to set num_regs - Dynamically allocate base address array in struct hantro_dev and rename it to bases - More concise IORESOURCE_MEM setup in hantro_probe
[1] https://patchwork.linuxtv.org/patch/56424/ --- drivers/staging/media/hantro/hantro.h | 8 ++++++-- drivers/staging/media/hantro/hantro_drv.c | 24 +++++++++++++++++------ 2 files changed, 24 insertions(+), 8 deletions(-) diff --git a/drivers/staging/media/hantro/hantro.h b/drivers/staging/media/hantro/hantro.h index d041d36a0805..feaa439a17b3 100644 --- a/drivers/staging/media/hantro/hantro.h +++ b/drivers/staging/media/hantro/hantro.h @@ -72,6 +72,8 @@ struct hantro_irq { * @num_irqs: number of irqs in the array * @clk_names: array of clock names * @num_clocks: number of clocks in the array + * @reg_names: array of register range names + * @num_regs: number of register range names in the array */ struct hantro_variant { unsigned int enc_offset; @@ -88,6 +90,8 @@ struct hantro_variant { int num_irqs; const char *clk_names[HANTRO_MAX_CLOCKS]; int num_clocks; + const char * const *reg_names; + int num_regs; }; /** @@ -160,7 +164,7 @@ hantro_vdev_to_func(struct video_device *vdev) * @dev: Pointer to device for convenient logging using * dev_ macros. * @clocks: Array of clock handles. - * @base: Mapped address of VPU registers. + * @bases: Mapped addresses of VPU registers. * @enc_base: Mapped address of VPU encoder register for convenience. * @dec_base: Mapped address of VPU decoder register for convenience. * @vpu_mutex: Mutex to synchronize V4L2 calls. @@ -178,7 +182,7 @@ struct hantro_dev { struct platform_device *pdev; struct device *dev; struct clk_bulk_data clocks[HANTRO_MAX_CLOCKS]; - void __iomem *base; + void __iomem **bases; void __iomem *enc_base; void __iomem *dec_base; diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c index e49bb03a988e..1f756e06dfc6 100644 --- a/drivers/staging/media/hantro/hantro_drv.c +++ b/drivers/staging/media/hantro/hantro_drv.c @@ -669,6 +669,7 @@ static int hantro_probe(struct platform_device *pdev) const struct of_device_id *match; struct hantro_dev *vpu; struct resource *res; + int num_bases; int i, ret; vpu = devm_kzalloc(&pdev->dev, sizeof(*vpu), GFP_KERNEL); @@ -692,12 +693,23 @@ static int hantro_probe(struct platform_device *pdev) if (ret) return ret; - res = platform_get_resource(vpu->pdev, IORESOURCE_MEM, 0); - vpu->base = devm_ioremap_resource(vpu->dev, res); - if (IS_ERR(vpu->base)) - return PTR_ERR(vpu->base); - vpu->enc_base = vpu->base + vpu->variant->enc_offset; - vpu->dec_base = vpu->base + vpu->variant->dec_offset; + num_bases = vpu->variant->num_regs ?: 1; + vpu->bases = devm_kcalloc(&pdev->dev, num_bases, sizeof(*vpu->bases), + GFP_KERNEL); + if (!vpu->bases) + return -ENOMEM; + + for (i = 0; i < num_bases; i++) { + res = vpu->variant->reg_names ? + platform_get_resource_byname(vpu->pdev, IORESOURCE_MEM, + vpu->variant->reg_names[i]) : + platform_get_resource(vpu->pdev, IORESOURCE_MEM, 0); + vpu->bases[i] = devm_ioremap_resource(vpu->dev, res); + if (IS_ERR(vpu->bases[i])) + return PTR_ERR(vpu->bases[i]); + } + vpu->enc_base = vpu->bases[0] + vpu->variant->enc_offset; + vpu->dec_base = vpu->bases[0] + vpu->variant->dec_offset; ret = dma_set_coherent_mask(vpu->dev, DMA_BIT_MASK(32)); if (ret) { -- 2.20.1
