OMAPDSS: DSI: Pass dsi platform device wherever possible

Many of the DSI functions receive the connected panel's omap_dss_device pointer
as an argument. The platform device pointer is then derived via omap_dss_device
pointers.

Most of these functions don't really require omap_dss_device pointer anymore
since we now keep copies of parameters in the driver data which were previously
available only via omap_dss_device. Replace the arguments with platform device
pointers for such functions.

Signed-off-by: Archit Taneja <archit@ti.com>

1 files changed, 39 insertions, 50 deletions

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index abe335abca53..5c82c918d2e3 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -2163,9 +2163,8 @@ static unsigned dsi_get_line_buf_size(struct platform_device *dsidev)
         }
 }
 
-static int dsi_set_lane_config(struct omap_dss_device *dssdev)
+static int dsi_set_lane_config(struct platform_device *dsidev)
 {
-        struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
         struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
         static const u8 offsets[] = { 0, 4, 8, 12, 16 };
         static const enum dsi_lane_function functions[] = {
@@ -2307,10 +2306,9 @@ static void dsi_cio_timings(struct platform_device *dsidev)
 }
 
 /* lane masks have lane 0 at lsb. mask_p for positive lines, n for negative */
-static void dsi_cio_enable_lane_override(struct omap_dss_device *dssdev,
+static void dsi_cio_enable_lane_override(struct platform_device *dsidev,
                 unsigned mask_p, unsigned mask_n)
 {
-        struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
         struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
         int i;
         u32 l;
@@ -2357,9 +2355,8 @@ static void dsi_cio_disable_lane_override(struct platform_device *dsidev)
         REG_FLD_MOD(dsidev, DSI_DSIPHY_CFG10, 0, 22, 17);
 }
 
-static int dsi_cio_wait_tx_clk_esc_reset(struct omap_dss_device *dssdev)
+static int dsi_cio_wait_tx_clk_esc_reset(struct platform_device *dsidev)
 {
-        struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
         struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
         int t, i;
         bool in_use[DSI_MAX_NR_LANES];
@@ -2407,9 +2404,8 @@ static int dsi_cio_wait_tx_clk_esc_reset(struct omap_dss_device *dssdev)
 }
 
 /* return bitmask of enabled lanes, lane0 being the lsb */
-static unsigned dsi_get_lane_mask(struct omap_dss_device *dssdev)
+static unsigned dsi_get_lane_mask(struct platform_device *dsidev)
 {
-        struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
         struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
         unsigned mask = 0;
         int i;
@@ -2422,16 +2418,15 @@ static unsigned dsi_get_lane_mask(struct omap_dss_device *dssdev)
         return mask;
 }
 
-static int dsi_cio_init(struct omap_dss_device *dssdev)
+static int dsi_cio_init(struct platform_device *dsidev)
 {
-        struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
         struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
         int r;
         u32 l;
 
         DSSDBGF();
 
-        r = dss_dsi_enable_pads(dsi->module_id, dsi_get_lane_mask(dssdev));
+        r = dss_dsi_enable_pads(dsi->module_id, dsi_get_lane_mask(dsidev));
         if (r)
                 return r;
 
@@ -2448,7 +2443,7 @@ static int dsi_cio_init(struct omap_dss_device *dssdev)
                 goto err_scp_clk_dom;
         }
 
-        r = dsi_set_lane_config(dssdev);
+        r = dsi_set_lane_config(dsidev);
         if (r)
                 goto err_scp_clk_dom;
 
@@ -2483,7 +2478,7 @@ static int dsi_cio_init(struct omap_dss_device *dssdev)
                         mask_p |= 1 << i;
                 }
 
-                dsi_cio_enable_lane_override(dssdev, mask_p, 0);
+                dsi_cio_enable_lane_override(dsidev, mask_p, 0);
         }
 
         r = dsi_cio_power(dsidev, DSI_COMPLEXIO_POWER_ON);
@@ -2500,7 +2495,7 @@ static int dsi_cio_init(struct omap_dss_device *dssdev)
         dsi_if_enable(dsidev, false);
         REG_FLD_MOD(dsidev, DSI_CLK_CTRL, 1, 20, 20); /* LP_CLK_ENABLE */
 
-        r = dsi_cio_wait_tx_clk_esc_reset(dssdev);
+        r = dsi_cio_wait_tx_clk_esc_reset(dsidev);
         if (r)
                 goto err_tx_clk_esc_rst;
 
@@ -2541,13 +2536,12 @@ err_cio_pwr:
                 dsi_cio_disable_lane_override(dsidev);
 err_scp_clk_dom:
         dsi_disable_scp_clk(dsidev);
-        dss_dsi_disable_pads(dsi->module_id, dsi_get_lane_mask(dssdev));
+        dss_dsi_disable_pads(dsi->module_id, dsi_get_lane_mask(dsidev));
         return r;
 }
 
-static void dsi_cio_uninit(struct omap_dss_device *dssdev)
+static void dsi_cio_uninit(struct platform_device *dsidev)
 {
-        struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
         struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
 
         /* DDR_CLK_ALWAYS_ON */
@@ -2555,7 +2549,7 @@ static void dsi_cio_uninit(struct omap_dss_device *dssdev)
 
         dsi_cio_power(dsidev, DSI_COMPLEXIO_POWER_OFF);
         dsi_disable_scp_clk(dsidev);
-        dss_dsi_disable_pads(dsi->module_id, dsi_get_lane_mask(dssdev));
+        dss_dsi_disable_pads(dsi->module_id, dsi_get_lane_mask(dsidev));
 }
 
 static void dsi_config_tx_fifo(struct platform_device *dsidev,
@@ -3148,10 +3142,9 @@ int dsi_vc_send_null(struct omap_dss_device *dssdev, int channel)
 }
 EXPORT_SYMBOL(dsi_vc_send_null);
 
-static int dsi_vc_write_nosync_common(struct omap_dss_device *dssdev,
+static int dsi_vc_write_nosync_common(struct platform_device *dsidev,
                 int channel, u8 *data, int len, enum dss_dsi_content_type type)
 {
-        struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
         int r;
 
         if (len == 0) {
@@ -3182,7 +3175,9 @@ static int dsi_vc_write_nosync_common(struct omap_dss_device *dssdev,
 int dsi_vc_dcs_write_nosync(struct omap_dss_device *dssdev, int channel,
                 u8 *data, int len)
 {
-        return dsi_vc_write_nosync_common(dssdev, channel, data, len,
+        struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
+
+        return dsi_vc_write_nosync_common(dsidev, channel, data, len,
                         DSS_DSI_CONTENT_DCS);
 }
 EXPORT_SYMBOL(dsi_vc_dcs_write_nosync);
@@ -3190,7 +3185,9 @@ EXPORT_SYMBOL(dsi_vc_dcs_write_nosync);
 int dsi_vc_generic_write_nosync(struct omap_dss_device *dssdev, int channel,
                 u8 *data, int len)
 {
-        return dsi_vc_write_nosync_common(dssdev, channel, data, len,
+        struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
+
+        return dsi_vc_write_nosync_common(dsidev, channel, data, len,
                         DSS_DSI_CONTENT_GENERIC);
 }
 EXPORT_SYMBOL(dsi_vc_generic_write_nosync);
@@ -3201,7 +3198,7 @@ static int dsi_vc_write_common(struct omap_dss_device *dssdev, int channel,
         struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
         int r;
 
-        r = dsi_vc_write_nosync_common(dssdev, channel, data, len, type);
+        r = dsi_vc_write_nosync_common(dsidev, channel, data, len, type);
         if (r)
                 goto err;
 
@@ -3279,10 +3276,9 @@ int dsi_vc_generic_write_2(struct omap_dss_device *dssdev, int channel,
 }
 EXPORT_SYMBOL(dsi_vc_generic_write_2);
 
-static int dsi_vc_dcs_send_read_request(struct omap_dss_device *dssdev,
+static int dsi_vc_dcs_send_read_request(struct platform_device *dsidev,
                 int channel, u8 dcs_cmd)
 {
-        struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
         struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
         int r;
 
@@ -3300,10 +3296,9 @@ static int dsi_vc_dcs_send_read_request(struct omap_dss_device *dssdev,
         return 0;
 }
 
-static int dsi_vc_generic_send_read_request(struct omap_dss_device *dssdev,
+static int dsi_vc_generic_send_read_request(struct platform_device *dsidev,
                 int channel, u8 *reqdata, int reqlen)
 {
-        struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
         struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
         u16 data;
         u8 data_type;
@@ -3452,7 +3447,7 @@ int dsi_vc_dcs_read(struct omap_dss_device *dssdev, int channel, u8 dcs_cmd,
         struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
         int r;
 
-        r = dsi_vc_dcs_send_read_request(dssdev, channel, dcs_cmd);
+        r = dsi_vc_dcs_send_read_request(dsidev, channel, dcs_cmd);
         if (r)
                 goto err;
 
@@ -3483,7 +3478,7 @@ static int dsi_vc_generic_read(struct omap_dss_device *dssdev, int channel,
         struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
         int r;
 
-        r = dsi_vc_generic_send_read_request(dssdev, channel, reqdata, reqlen);
+        r = dsi_vc_generic_send_read_request(dsidev, channel, reqdata, reqlen);
         if (r)
                 return r;
 
@@ -3765,14 +3760,12 @@ static void dsi_set_hs_tx_timeout(struct platform_device *dsidev,
                         (total_ticks * 1000) / (fck / 1000 / 1000));
 }
 
-static void dsi_config_vp_num_line_buffers(struct omap_dss_device *dssdev)
+static void dsi_config_vp_num_line_buffers(struct platform_device *dsidev)
 {
-        struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
         struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
         int num_line_buffers;
 
         if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) {
-                struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
                 int bpp = dsi_get_pixel_size(dsi->pix_fmt);
                 unsigned line_buf_size = dsi_get_line_buf_size(dsidev);
                 struct omap_video_timings *timings = &dsi->timings;
@@ -3793,9 +3786,8 @@ static void dsi_config_vp_num_line_buffers(struct omap_dss_device *dssdev)
         REG_FLD_MOD(dsidev, DSI_CTRL, num_line_buffers, 13, 12);
 }
 
-static void dsi_config_vp_sync_events(struct omap_dss_device *dssdev)
+static void dsi_config_vp_sync_events(struct platform_device *dsidev)
 {
-        struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
         struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
         bool vsync_end = dsi->vm_timings.vp_vsync_end;
         bool hsync_end = dsi->vm_timings.vp_hsync_end;
@@ -3812,9 +3804,8 @@ static void dsi_config_vp_sync_events(struct omap_dss_device *dssdev)
         dsi_write_reg(dsidev, DSI_CTRL, r);
 }
 
-static void dsi_config_blanking_modes(struct omap_dss_device *dssdev)
+static void dsi_config_blanking_modes(struct platform_device *dsidev)
 {
-        struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
         struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
         int blanking_mode = dsi->vm_timings.blanking_mode;
         int hfp_blanking_mode = dsi->vm_timings.hfp_blanking_mode;
@@ -4069,11 +4060,11 @@ static int dsi_proto_config(struct omap_dss_device *dssdev)
 
         dsi_write_reg(dsidev, DSI_CTRL, r);
 
-        dsi_config_vp_num_line_buffers(dssdev);
+        dsi_config_vp_num_line_buffers(dsidev);
 
         if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) {
-                dsi_config_vp_sync_events(dssdev);
-                dsi_config_blanking_modes(dssdev);
+                dsi_config_vp_sync_events(dsidev);
+                dsi_config_blanking_modes(dsidev);
                 dsi_config_cmd_mode_interleaving(dssdev);
         }
 
@@ -4085,9 +4076,8 @@ static int dsi_proto_config(struct omap_dss_device *dssdev)
         return 0;
 }
 
-static void dsi_proto_timings(struct omap_dss_device *dssdev)
+static void dsi_proto_timings(struct platform_device *dsidev)
 {
-        struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
         struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
         unsigned tlpx, tclk_zero, tclk_prepare, tclk_trail;
         unsigned tclk_pre, tclk_post;
@@ -4534,8 +4524,7 @@ static void dsi_framedone_timeout_work_callback(struct work_struct *work)
 
 static void dsi_framedone_irq_callback(void *data, u32 mask)
 {
-        struct omap_dss_device *dssdev = (struct omap_dss_device *) data;
-        struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
+        struct platform_device *dsidev = (struct platform_device *) data;
         struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
 
         /* Note: We get FRAMEDONE when DISPC has finished sending pixels and
@@ -4619,7 +4608,7 @@ static int dsi_display_init_dispc(struct omap_dss_device *dssdev)
                 irq = dispc_mgr_get_framedone_irq(dssdev->manager->id);
 
                 r = omap_dispc_register_isr(dsi_framedone_irq_callback,
-                        (void *) dssdev, irq);
+                        (void *) dsidev, irq);
                 if (r) {
                         DSSERR("can't get FRAMEDONE irq\n");
                         goto err;
@@ -4660,7 +4649,7 @@ static int dsi_display_init_dispc(struct omap_dss_device *dssdev)
 err1:
         if (dsi->mode == OMAP_DSS_DSI_CMD_MODE)
                 omap_dispc_unregister_isr(dsi_framedone_irq_callback,
-                        (void *) dssdev, irq);
+                        (void *) dsidev, irq);
 err:
         return r;
 }
@@ -4676,7 +4665,7 @@ static void dsi_display_uninit_dispc(struct omap_dss_device *dssdev)
                 irq = dispc_mgr_get_framedone_irq(dssdev->manager->id);
 
                 omap_dispc_unregister_isr(dsi_framedone_irq_callback,
-                        (void *) dssdev, irq);
+                        (void *) dsidev, irq);
         }
 }
 
@@ -4726,13 +4715,13 @@ static int dsi_display_init_dsi(struct omap_dss_device *dssdev)
 
         DSSDBG("PLL OK\n");
 
-        r = dsi_cio_init(dssdev);
+        r = dsi_cio_init(dsidev);
         if (r)
                 goto err2;
 
         _dsi_print_reset_status(dsidev);
 
-        dsi_proto_timings(dssdev);
+        dsi_proto_timings(dsidev);
         dsi_set_lp_clk_divisor(dssdev);
 
         if (1)
@@ -4752,7 +4741,7 @@ static int dsi_display_init_dsi(struct omap_dss_device *dssdev)
 
         return 0;
 err3:
-        dsi_cio_uninit(dssdev);
+        dsi_cio_uninit(dsidev);
 err2:
         dss_select_dispc_clk_source(OMAP_DSS_CLK_SRC_FCK);
         dss_select_dsi_clk_source(dsi->module_id, OMAP_DSS_CLK_SRC_FCK);
@@ -4783,7 +4772,7 @@ static void dsi_display_uninit_dsi(struct omap_dss_device *dssdev,
         dss_select_dispc_clk_source(OMAP_DSS_CLK_SRC_FCK);
         dss_select_dsi_clk_source(dsi->module_id, OMAP_DSS_CLK_SRC_FCK);
         dss_select_lcd_clk_source(dssdev->manager->id, OMAP_DSS_CLK_SRC_FCK);
-        dsi_cio_uninit(dssdev);
+        dsi_cio_uninit(dsidev);
         dsi_pll_uninit(dsidev, disconnect_lanes);
 }