On Monday 07 November 2016 04:18 PM, Marek Szyprowski wrote:
> There is no need to access regmap of coupled phy to check its state - such
> information is already in the phy device itself, so use it directly. This
> let us to avoid possible access to registers of the device in the disabled
> power domain if the coupled phy is already disabled.
>
> Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
> Acked-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
merged to phy -next.
Thanks
Kishon
> ---
> drivers/phy/phy-exynos-mipi-video.c | 15 +--------------
> 1 file changed, 1 insertion(+), 14 deletions(-)
>
> diff --git a/drivers/phy/phy-exynos-mipi-video.c b/drivers/phy/phy-exynos-mipi-video.c
> index 8b851f7..6bee04c 100644
> --- a/drivers/phy/phy-exynos-mipi-video.c
> +++ b/drivers/phy/phy-exynos-mipi-video.c
> @@ -229,19 +229,6 @@ struct exynos_mipi_video_phy {
> spinlock_t slock;
> };
>
> -static inline int __is_running(const struct exynos_mipi_phy_desc *data,
> - struct exynos_mipi_video_phy *state)
> -{
> - u32 val;
> - int ret;
> -
> - ret = regmap_read(state->regmaps[data->resetn_map], data->resetn_reg, &val);
> - if (ret)
> - return 0;
> -
> - return val & data->resetn_val;
> -}
> -
> static int __set_phy_state(const struct exynos_mipi_phy_desc *data,
> struct exynos_mipi_video_phy *state, unsigned int on)
> {
> @@ -251,7 +238,7 @@ static int __set_phy_state(const struct exynos_mipi_phy_desc *data,
>
> /* disable in PMU sysreg */
> if (!on && data->coupled_phy_id >= 0 &&
> - !__is_running(state->phys[data->coupled_phy_id].data, state)) {
> + state->phys[data->coupled_phy_id].phy->power_count == 0) {
> regmap_read(state->regmaps[data->enable_map], data->enable_reg,
> &val);
> val &= ~data->enable_val;
>
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