Hi,
On Tue, Feb 25, 2020 at 03:58:23PM +0200, Laurent Pinchart wrote:
> Hi Sebastian,
>
> Thank you for the patch.
>
> On Tue, Feb 25, 2020 at 12:20:35AM +0100, Sebastian Reichel wrote:
> > This replaces OMAP specific enum for pixel format with
> > common implementation.
> >
> > Signed-off-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx>
> > ---
> > .../gpu/drm/omapdrm/displays/panel-dsi-cm.c | 2 +-
> > drivers/gpu/drm/omapdrm/dss/dsi.c | 49 +++++++------------
> > drivers/gpu/drm/omapdrm/dss/omapdss.h | 10 +---
> > 3 files changed, 20 insertions(+), 41 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
> > index e7fe5d702337..e6ebfc35243e 100644
> > --- a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
> > +++ b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
> > @@ -595,7 +595,7 @@ static int dsicm_power_on(struct panel_drv_data *ddata)
> > int r;
> > struct omap_dss_dsi_config dsi_config = {
> > .mode = OMAP_DSS_DSI_CMD_MODE,
> > - .pixel_format = OMAP_DSS_DSI_FMT_RGB888,
> > + .pixel_format = MIPI_DSI_FMT_RGB888,
> > .vm = &ddata->vm,
> > .hs_clk_min = 150000000,
> > .hs_clk_max = 300000000,
> > diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c
> > index 8c39823a8295..bb2548d091ef 100644
> > --- a/drivers/gpu/drm/omapdrm/dss/dsi.c
> > +++ b/drivers/gpu/drm/omapdrm/dss/dsi.c
> > @@ -34,6 +34,7 @@
> > #include <linux/sys_soc.h>
> >
> > #include <video/mipi_display.h>
> > +#include <drm/drm_mipi_dsi.h>
>
> Maybe sort those two headers alphabetically ?
Ack.
>
> >
> > #include "omapdss.h"
> > #include "dss.h"
> > @@ -410,7 +411,7 @@ struct dsi_data {
> >
> > struct dss_lcd_mgr_config mgr_config;
> > struct videomode vm;
> > - enum omap_dss_dsi_pixel_format pix_fmt;
> > + enum mipi_dsi_pixel_format pix_fmt;
> > enum omap_dss_dsi_mode mode;
> > struct omap_dss_dsi_videomode_timings vm_timings;
> >
> > @@ -514,22 +515,6 @@ static inline bool wait_for_bit_change(struct dsi_data *dsi,
> > return false;
> > }
> >
> > -static u8 dsi_get_pixel_size(enum omap_dss_dsi_pixel_format fmt)
> > -{
> > - switch (fmt) {
> > - case OMAP_DSS_DSI_FMT_RGB888:
> > - case OMAP_DSS_DSI_FMT_RGB666:
> > - return 24;
> > - case OMAP_DSS_DSI_FMT_RGB666_PACKED:
> > - return 18;
> > - case OMAP_DSS_DSI_FMT_RGB565:
> > - return 16;
> > - default:
> > - BUG();
>
> Removing a BUG() is really nice :-) I suppose this never happened, or we
> would have heard of it. Still, is there a top-level location where we
> could validate the format (assuming it is still used at the end of this
> series) ? mipi_dsi_pixel_format_to_bpp() returns -EINVAL if the format
> is invalid, and we don't check for that through the code . It doesn't
> have to be handled in this patch, it can be done later in the series as
> you keep reworking the code.
The pixel format is a constant from the panel driver (first change
in this patch). In the encoder stage it originates from dsi_set_config(),
later from omap_dsi_host_attach(). I will add a check there.
> > - return 0;
> > - }
> > -}
> > -
> > #ifdef DSI_PERF_MEASURE
> > static void dsi_perf_mark_setup(struct dsi_data *dsi)
> > {
> > @@ -3239,7 +3224,7 @@ static void dsi_config_vp_num_line_buffers(struct dsi_data *dsi)
> > int num_line_buffers;
> >
> > if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) {
> > - int bpp = dsi_get_pixel_size(dsi->pix_fmt);
> > + int bpp = mipi_dsi_pixel_format_to_bpp(dsi->pix_fmt);
> > const struct videomode *vm = &dsi->vm;
> > /*
> > * Don't use line buffers if width is greater than the video
> > @@ -3370,7 +3355,7 @@ static void dsi_config_cmd_mode_interleaving(struct dsi_data *dsi)
> > int tclk_trail, ths_exit, exiths_clk;
> > bool ddr_alwon;
> > const struct videomode *vm = &dsi->vm;
> > - int bpp = dsi_get_pixel_size(dsi->pix_fmt);
> > + int bpp = mipi_dsi_pixel_format_to_bpp(dsi->pix_fmt);
> > int ndl = dsi->num_lanes_used - 1;
> > int dsi_fclk_hsdiv = dsi->user_dsi_cinfo.mX[HSDIV_DSI] + 1;
> > int hsa_interleave_hs = 0, hsa_interleave_lp = 0;
> > @@ -3498,7 +3483,7 @@ static int dsi_proto_config(struct dsi_data *dsi)
> > dsi_set_lp_rx_timeout(dsi, 0x1fff, true, true);
> > dsi_set_hs_tx_timeout(dsi, 0x1fff, true, true);
> >
> > - switch (dsi_get_pixel_size(dsi->pix_fmt)) {
> > + switch (mipi_dsi_pixel_format_to_bpp(dsi->pix_fmt)) {
> > case 16:
> > buswidth = 0;
> > break;
> > @@ -3619,7 +3604,7 @@ static void dsi_proto_timings(struct dsi_data *dsi)
> > int window_sync = dsi->vm_timings.window_sync;
> > bool hsync_end;
> > const struct videomode *vm = &dsi->vm;
> > - int bpp = dsi_get_pixel_size(dsi->pix_fmt);
> > + int bpp = mipi_dsi_pixel_format_to_bpp(dsi->pix_fmt);
> > int tl, t_he, width_bytes;
> >
> > hsync_end = dsi->vm_timings.trans_mode == OMAP_DSS_DSI_PULSE_MODE;
> > @@ -3726,7 +3711,7 @@ static int dsi_configure_pins(struct omap_dss_device *dssdev,
> > static int dsi_enable_video_output(struct omap_dss_device *dssdev, int channel)
> > {
> > struct dsi_data *dsi = to_dsi_data(dssdev);
> > - int bpp = dsi_get_pixel_size(dsi->pix_fmt);
> > + int bpp = mipi_dsi_pixel_format_to_bpp(dsi->pix_fmt);
> > u8 data_type;
> > u16 word_count;
> > int r;
> > @@ -3737,16 +3722,16 @@ static int dsi_enable_video_output(struct omap_dss_device *dssdev, int channel)
> >
> > if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) {
> > switch (dsi->pix_fmt) {
> > - case OMAP_DSS_DSI_FMT_RGB888:
> > + case MIPI_DSI_FMT_RGB888:
> > data_type = MIPI_DSI_PACKED_PIXEL_STREAM_24;
> > break;
> > - case OMAP_DSS_DSI_FMT_RGB666:
> > + case MIPI_DSI_FMT_RGB666:
> > data_type = MIPI_DSI_PIXEL_STREAM_3BYTE_18;
> > break;
> > - case OMAP_DSS_DSI_FMT_RGB666_PACKED:
> > + case MIPI_DSI_FMT_RGB666_PACKED:
> > data_type = MIPI_DSI_PACKED_PIXEL_STREAM_18;
> > break;
> > - case OMAP_DSS_DSI_FMT_RGB565:
> > + case MIPI_DSI_FMT_RGB565:
> > data_type = MIPI_DSI_PACKED_PIXEL_STREAM_16;
> > break;
> > default:
> > @@ -3824,7 +3809,7 @@ static void dsi_update_screen_dispc(struct dsi_data *dsi)
> >
> > dsi_vc_config_source(dsi, channel, DSI_VC_SOURCE_VP);
> >
> > - bytespp = dsi_get_pixel_size(dsi->pix_fmt) / 8;
> > + bytespp = mipi_dsi_pixel_format_to_bpp(dsi->pix_fmt) / 8;
> > bytespl = w * bytespp;
> > bytespf = bytespl * h;
> >
> > @@ -3954,7 +3939,7 @@ static int dsi_update(struct omap_dss_device *dssdev, int channel,
> >
> > #ifdef DSI_PERF_MEASURE
> > dsi->update_bytes = dw * dh *
> > - dsi_get_pixel_size(dsi->pix_fmt) / 8;
> > + mipi_dsi_pixel_format_to_bpp(dsi->pix_fmt) / 8;
> > #endif
> > dsi_update_screen_dispc(dsi);
> >
> > @@ -4015,7 +4000,7 @@ static int dsi_display_init_dispc(struct dsi_data *dsi)
> >
> > dsi->mgr_config.io_pad_mode = DSS_IO_PAD_MODE_BYPASS;
> > dsi->mgr_config.video_port_width =
> > - dsi_get_pixel_size(dsi->pix_fmt);
> > + mipi_dsi_pixel_format_to_bpp(dsi->pix_fmt);
> > dsi->mgr_config.lcden_sig_polarity = 0;
> >
> > dss_mgr_set_lcd_config(&dsi->output, &dsi->mgr_config);
> > @@ -4353,7 +4338,7 @@ static bool dsi_cm_calc(struct dsi_data *dsi,
> > unsigned long pck, txbyteclk;
> >
> > clkin = clk_get_rate(dsi->pll.clkin);
> > - bitspp = dsi_get_pixel_size(cfg->pixel_format);
> > + bitspp = mipi_dsi_pixel_format_to_bpp(cfg->pixel_format);
> > ndl = dsi->num_lanes_used - 1;
> >
> > /*
> > @@ -4386,7 +4371,7 @@ static bool dsi_vm_calc_blanking(struct dsi_clk_calc_ctx *ctx)
> > {
> > struct dsi_data *dsi = ctx->dsi;
> > const struct omap_dss_dsi_config *cfg = ctx->config;
> > - int bitspp = dsi_get_pixel_size(cfg->pixel_format);
> > + int bitspp = mipi_dsi_pixel_format_to_bpp(cfg->pixel_format);
> > int ndl = dsi->num_lanes_used - 1;
> > unsigned long hsclk = ctx->dsi_cinfo.clkdco / 4;
> > unsigned long byteclk = hsclk / 4;
> > @@ -4653,7 +4638,7 @@ static bool dsi_vm_calc(struct dsi_data *dsi,
> > unsigned long pll_min;
> > unsigned long pll_max;
> > int ndl = dsi->num_lanes_used - 1;
> > - int bitspp = dsi_get_pixel_size(cfg->pixel_format);
> > + int bitspp = mipi_dsi_pixel_format_to_bpp(cfg->pixel_format);
> > unsigned long byteclk_min;
> >
> > clkin = clk_get_rate(dsi->pll.clkin);
> > diff --git a/drivers/gpu/drm/omapdrm/dss/omapdss.h b/drivers/gpu/drm/omapdrm/dss/omapdss.h
> > index b0424daaceed..53fea1cbbc2d 100644
> > --- a/drivers/gpu/drm/omapdrm/dss/omapdss.h
> > +++ b/drivers/gpu/drm/omapdrm/dss/omapdss.h
> > @@ -14,6 +14,7 @@
> > #include <linux/platform_data/omapdss.h>
> > #include <uapi/drm/drm_mode.h>
>
> While at it, I would replace this with
>
> #include <drm/drm_mode.h>
>
> , add a blank line here, and keep the drm headers sorted alphabetically.
Ack
> Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Thanks.
> > #include <drm/drm_crtc.h>
> > +#include <drm/drm_mipi_dsi.h>
> >
> > #define DISPC_IRQ_FRAMEDONE (1 << 0)
> > #define DISPC_IRQ_VSYNC (1 << 1)
> > @@ -116,13 +117,6 @@ enum omap_dss_venc_type {
> > OMAP_DSS_VENC_TYPE_SVIDEO,
> > };
> >
> > -enum omap_dss_dsi_pixel_format {
> > - OMAP_DSS_DSI_FMT_RGB888,
> > - OMAP_DSS_DSI_FMT_RGB666,
> > - OMAP_DSS_DSI_FMT_RGB666_PACKED,
> > - OMAP_DSS_DSI_FMT_RGB565,
> > -};
> > -
> > enum omap_dss_dsi_mode {
> > OMAP_DSS_DSI_CMD_MODE = 0,
> > OMAP_DSS_DSI_VIDEO_MODE,
> > @@ -210,7 +204,7 @@ struct omap_dss_dsi_videomode_timings {
> >
> > struct omap_dss_dsi_config {
> > enum omap_dss_dsi_mode mode;
> > - enum omap_dss_dsi_pixel_format pixel_format;
> > + enum mipi_dsi_pixel_format pixel_format;
> > const struct videomode *vm;
> >
> > unsigned long hs_clk_min, hs_clk_max;
>
> --
> Regards,
>
> Laurent Pinchart
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