On Fri, 01 Jun 2018, Abhinav Kumar <abhinavk@xxxxxxxxxxxxxx> wrote: > Make the pclk_rate u64 to accommodate higher pixel clock > rates. > > Changes in v3: > - Rebased on top of https://patchwork.kernel.org/patch/10348865/ > > Signed-off-by: Abhinav Kumar <abhinavk@xxxxxxxxxxxxxx> Please have a look at the output of $ git log --pretty=%s -- drivers/gpu/drm/msm/dsi/dsi_host.c to give you an idea how to prefix your commit subject. Thanks, Jani. > --- > drivers/gpu/drm/msm/dsi/dsi_host.c | 9 ++++++--- > 1 file changed, 6 insertions(+), 3 deletions(-) > > diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c > index b9f2ef9..596959c 100644 > --- a/drivers/gpu/drm/msm/dsi/dsi_host.c > +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c > @@ -669,7 +669,8 @@ static int dsi_calc_clk_rate(struct msm_dsi_host *msm_host, bool is_dual_dsi) > const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd; > u8 lanes = msm_host->lanes; > u32 bpp = dsi_get_bpp(msm_host->format); > - u32 pclk_rate; > + u64 pclk_rate; > + u64 pclk_bpp; > > if (!mode) { > pr_err("%s: mode not set\n", __func__); > @@ -689,13 +690,15 @@ static int dsi_calc_clk_rate(struct msm_dsi_host *msm_host, bool is_dual_dsi) > if (is_dual_dsi) > pclk_rate /= 2; > > + pclk_bpp = pclk_rate * bpp; > if (lanes > 0) { > - msm_host->byte_clk_rate = (pclk_rate * bpp) / (8 * lanes); > + do_div(pclk_bpp, (8 * lanes)); > } else { > pr_err("%s: forcing mdss_dsi lanes to 1\n", __func__); > - msm_host->byte_clk_rate = (pclk_rate * bpp) / 8; > + do_div(pclk_bpp, 8); > } > msm_host->pixel_clk_rate = pclk_rate; > + msm_host->byte_clk_rate = pclk_bpp; > > DBG("pclk=%d, bclk=%d", msm_host->pixel_clk_rate, > msm_host->byte_clk_rate); -- Jani Nikula, Intel Open Source Graphics Center -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
