[PATCH 2/2] drm/msm/dsi: split dsi_ctrl_config() function

[Marijn Suijten]

On 2023-06-15 01:44:02, Dmitry Baryshkov wrote:
> It makes no sense to pass NULL parameters to dsi_ctrl_config() in the
> disable case. Split dsi_ctrl_config() into enable and disable parts and
> drop unused params.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>

Indeed, it makes much more sense to split this out instead of faking a
_configure(false) with a return right at the top and "bogus" pointers.

Reviewed-by: Marijn Suijten <marijn.suijten at somainline.org>

> ---
>  drivers/gpu/drm/msm/dsi/dsi_host.c | 18 +++++++++---------
>  1 file changed, 9 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
> index eaee621aa6c8..3f6dfb4f9d5a 100644
> --- a/drivers/gpu/drm/msm/dsi/dsi_host.c
> +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
> @@ -705,7 +705,12 @@ static inline enum dsi_cmd_dst_format dsi_get_cmd_fmt(
>  	}
>  }
>  
> -static void dsi_ctrl_config(struct msm_dsi_host *msm_host, bool enable,
> +static void dsi_ctrl_disable(struct msm_dsi_host *msm_host)
> +{
> +	dsi_write(msm_host, REG_DSI_CTRL, 0);
> +}
> +
> +static void dsi_ctrl_enable(struct msm_dsi_host *msm_host,
>  			struct msm_dsi_phy_shared_timings *phy_shared_timings, struct msm_dsi_phy *phy)
>  {
>  	u32 flags = msm_host->mode_flags;
> @@ -713,11 +718,6 @@ static void dsi_ctrl_config(struct msm_dsi_host *msm_host, bool enable,
>  	const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd;
>  	u32 data = 0, lane_ctrl = 0;
>  
> -	if (!enable) {
> -		dsi_write(msm_host, REG_DSI_CTRL, 0);
> -		return;
> -	}
> -
>  	if (flags & MIPI_DSI_MODE_VIDEO) {
>  		if (flags & MIPI_DSI_MODE_VIDEO_HSE)
>  			data |= DSI_VID_CFG0_PULSE_MODE_HSA_HE;
> @@ -802,7 +802,7 @@ static void dsi_ctrl_config(struct msm_dsi_host *msm_host, bool enable,
>  	if (!(flags & MIPI_DSI_CLOCK_NON_CONTINUOUS)) {
>  		lane_ctrl = dsi_read(msm_host, REG_DSI_LANE_CTRL);
>  
> -		if (msm_dsi_phy_set_continuous_clock(phy, enable))
> +		if (msm_dsi_phy_set_continuous_clock(phy, true))
>  			lane_ctrl &= ~DSI_LANE_CTRL_HS_REQ_SEL_PHY;
>  
>  		dsi_write(msm_host, REG_DSI_LANE_CTRL,
> @@ -2358,7 +2358,7 @@ int msm_dsi_host_power_on(struct mipi_dsi_host *host,
>  
>  	dsi_timing_setup(msm_host, is_bonded_dsi);
>  	dsi_sw_reset(msm_host);
> -	dsi_ctrl_config(msm_host, true, phy_shared_timings, phy);
> +	dsi_ctrl_enable(msm_host, phy_shared_timings, phy);
>  
>  	if (msm_host->disp_en_gpio)
>  		gpiod_set_value(msm_host->disp_en_gpio, 1);
> @@ -2390,7 +2390,7 @@ int msm_dsi_host_power_off(struct mipi_dsi_host *host)
>  		goto unlock_ret;
>  	}
>  
> -	dsi_ctrl_config(msm_host, false, NULL, NULL);
> +	dsi_ctrl_disable(msm_host);
>  
>  	if (msm_host->disp_en_gpio)
>  		gpiod_set_value(msm_host->disp_en_gpio, 0);
> -- 
> 2.39.2
>