drm: rcar-du: Rename and document dpll_ch field

Document and re-name the 'dpll_ch' field to a more precise 'dpll_mask' for
consistency with the 'channels_mask' field defined in 'struct
rcar_du_device_info'.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
index eadf381..2bf63dc 100644 (file)
--- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
@@ -248,7 +248,7 @@ static void rcar_du_crtc_set_display_timing(struct rcar_du_crtc *rcrtc)
        u32 dsmr;
        u32 escr;
 
-       if (rcdu->info->dpll_ch & (1 << rcrtc->index)) {
+       if (rcdu->info->dpll_mask & (1 << rcrtc->index)) {
                unsigned long target = mode_clock;
                struct dpll_info dpll = { 0 };
                unsigned long extclk;

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
index 02fa9d3..0954ecd 100644 (file)
--- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
@@ -218,7 +218,7 @@ static const struct rcar_du_device_info rcar_du_r8a7795_info = {
                },
        },
        .num_lvds = 1,
-       .dpll_ch =  BIT(2) | BIT(1),
+       .dpll_mask =  BIT(2) | BIT(1),
 };
 
 static const struct rcar_du_device_info rcar_du_r8a7796_info = {
@@ -247,7 +247,7 @@ static const struct rcar_du_device_info rcar_du_r8a7796_info = {
                },
        },
        .num_lvds = 1,
-       .dpll_ch =  BIT(1),
+       .dpll_mask =  BIT(1),
 };
 
 static const struct rcar_du_device_info rcar_du_r8a77965_info = {
@@ -276,7 +276,7 @@ static const struct rcar_du_device_info rcar_du_r8a77965_info = {
                },
        },
        .num_lvds = 1,
-       .dpll_ch =  BIT(1),
+       .dpll_mask =  BIT(1),
 };
 
 static const struct rcar_du_device_info rcar_du_r8a77970_info = {

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h b/drivers/gpu/drm/rcar-du/rcar_du_drv.h
index 534a029..fef9ea5 100644 (file)
--- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h
+++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h
@@ -52,6 +52,7 @@ struct rcar_du_output_routing {
  * @channels_mask: bit mask of available DU channels
  * @routes: array of CRTC to output routes, indexed by output (RCAR_DU_OUTPUT_*)
  * @num_lvds: number of internal LVDS encoders
+ * @dpll_mask: bit mask of DU channels equipped with a DPLL
  */
 struct rcar_du_device_info {
        unsigned int gen;
@@ -60,7 +61,7 @@ struct rcar_du_device_info {
        unsigned int channels_mask;
        struct rcar_du_output_routing routes[RCAR_DU_OUTPUT_MAX];
        unsigned int num_lvds;
-       unsigned int dpll_ch;
+       unsigned int dpll_mask;
 };
 
 #define RCAR_DU_MAX_CRTCS              4