Dear Rajeshwari Shinde,
On 4 May 2012 20:12, Rajeshwari Shinde <rajeshwar...@samsung.com> wrote:
> This patch adds functions to enable/disable the power of USB
> host controller for EXYNOS5.
>
> Signed-off-by: Vivek Gautam <gautam.vi...@samsung.com>
> Signed-off-by: Che-Liang Chiou <clch...@chromium.org>
> Signed-off-by: Rajeshwari Shinde <rajeshwar...@samsung.com>
> ---
change log.
> This patchset is based on:
> USB: EXYNOS: Add ehci support.patch
>
> arch/arm/cpu/armv7/exynos/power.c | 37
> ++++++++++++++++++++++++++++++
> arch/arm/include/asm/arch-exynos/power.h | 4 +++
> drivers/usb/host/ehci-exynos.c | 4 +++
> 3 files changed, 45 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/cpu/armv7/exynos/power.c
> b/arch/arm/cpu/armv7/exynos/power.c
> index c765304..b2944b5 100644
> --- a/arch/arm/cpu/armv7/exynos/power.c
> +++ b/arch/arm/cpu/armv7/exynos/power.c
> @@ -52,3 +52,40 @@ void set_mipi_phy_ctrl(unsigned int dev_index, unsigned
> int enable)
> if (cpu_is_exynos4())
> exynos4_mipi_phy_control(dev_index, enable);
> }
> +
> +void exynos5_ps_hold_setup(void)
> +{
> + struct exynos5_power *power =
> + (struct exynos5_power *)samsung_get_base_power();
> +
> + /* Set PS-Hold high */
> + setbits_le32(&power->ps_hold_control,
> POWER_PS_HOLD_CONTROL_DATA_HIGH);
Then, we can't set ps_hold to low?
> +}
> +
> +void exynos5_enable_usb_phy(unsigned int enable)
> +{
> + struct exynos5_power *power =
> + (struct exynos5_power *)samsung_get_base_power();
> +
> + if (enable) {
> + /* Enabling USBHOST_PHY */
> + setbits_le32(&power->usbhost_phy_control,
> + POWER_USB_HOST_PHY_CTRL_EN);
> + } else {
> + /* Disabling USBHost_PHY */
USBHOST or USBHost?
> + clrbits_le32(&power->usbhost_phy_control,
> + POWER_USB_HOST_PHY_CTRL_EN);
> + }
> +}
> +
> +void ps_hold_setup(void)
set_ps_hold_ctrl.
> +{
> + if (cpu_is_exynos5())
> + exynos5_ps_hold_setup();
> +}
> +
> +void power_enable_usb_phy(unsigned int enable)
set_usbhost_phy_ctrl.
> +{
> + if (cpu_is_exynos5())
> + exynos5_enable_usb_phy(enable);
> +}
Thanks.
Minkyu Kang.
--
from. prom.
www.promsoft.net
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