From 7b71c410b2417acba49648ceaa6de38b00b05c88 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Wed, 6 Aug 2014 15:45:26 +0300 Subject: [PATCH] OMAPDSS: DSI: separate LP clock info from dsi_clock_info struct dsi_clock_info represents the clocks handled by the DSI, mostly PLL related clocks. In an effort to create common PLL code, we need to remove all the non-PLL items from dsi_clock_info. This patch removes LP clock related fields from dsi_clock_info, and creates a new struct dsi_lp_clock_info for holding clock info for the LP clock. Signed-off-by: Tomi Valkeinen --- drivers/video/fbdev/omap2/dss/dsi.c | 30 +++++++++++++++++++----------- drivers/video/fbdev/omap2/dss/dss.h | 2 -- 2 files changed, 19 insertions(+), 13 deletions(-) diff --git a/drivers/video/fbdev/omap2/dss/dsi.c b/drivers/video/fbdev/omap2/dss/dsi.c index 0083f6500949..1c5a15581669 100644 --- a/drivers/video/fbdev/omap2/dss/dsi.c +++ b/drivers/video/fbdev/omap2/dss/dsi.c @@ -287,6 +287,11 @@ struct dsi_clk_calc_ctx { struct omap_dss_dsi_videomode_timings dsi_vm; }; +struct dsi_lp_clock_info { + unsigned long lp_clk; + u16 lp_clk_div; +}; + struct dsi_data { struct platform_device *pdev; void __iomem *proto_base; @@ -307,6 +312,9 @@ struct dsi_data { struct dsi_clock_info current_cinfo; + struct dsi_lp_clock_info user_lp_cinfo; + struct dsi_lp_clock_info current_lp_cinfo; + bool vdds_dsi_enabled; struct regulator *vdds_dsi_reg; @@ -1293,10 +1301,10 @@ static unsigned long dsi_fclk_rate(struct platform_device *dsidev) return r; } -static int dsi_lp_clock_calc(struct dsi_clock_info *cinfo, - unsigned long lp_clk_min, unsigned long lp_clk_max) +static int dsi_lp_clock_calc(unsigned long dsi_fclk, + unsigned long lp_clk_min, unsigned long lp_clk_max, + struct dsi_lp_clock_info *lp_cinfo) { - unsigned long dsi_fclk = cinfo->dsi_pll_hsdiv_dsi_clk; unsigned lp_clk_div; unsigned long lp_clk; @@ -1306,8 +1314,8 @@ static int dsi_lp_clock_calc(struct dsi_clock_info *cinfo, if (lp_clk < lp_clk_min || lp_clk > lp_clk_max) return -EINVAL; - cinfo->lp_clk_div = lp_clk_div; - cinfo->lp_clk = lp_clk; + lp_cinfo->lp_clk_div = lp_clk_div; + lp_cinfo->lp_clk = lp_clk; return 0; } @@ -1319,7 +1327,7 @@ static int dsi_set_lp_clk_divisor(struct platform_device *dsidev) unsigned lp_clk_div; unsigned long lp_clk; - lp_clk_div = dsi->user_dsi_cinfo.lp_clk_div; + lp_clk_div = dsi->user_lp_cinfo.lp_clk_div; if (lp_clk_div == 0 || lp_clk_div > dsi->lpdiv_max) return -EINVAL; @@ -1329,8 +1337,8 @@ static int dsi_set_lp_clk_divisor(struct platform_device *dsidev) lp_clk = dsi_fclk / 2 / lp_clk_div; DSSDBG("LP_CLK_DIV %u, LP_CLK %lu\n", lp_clk_div, lp_clk); - dsi->current_cinfo.lp_clk = lp_clk; - dsi->current_cinfo.lp_clk_div = lp_clk_div; + dsi->current_lp_cinfo.lp_clk = lp_clk; + dsi->current_lp_cinfo.lp_clk_div = lp_clk_div; /* LP_CLK_DIVISOR */ REG_FLD_MOD(dsidev, DSI_CLK_CTRL, lp_clk_div, 12, 0); @@ -1801,7 +1809,7 @@ static void dsi_dump_dsidev_clocks(struct platform_device *dsidev, seq_printf(s, "TxByteClkHS\t%lu\n", dsi_get_txbyteclkhs(dsidev)); - seq_printf(s, "LP_CLK\t\t%lu\n", cinfo->lp_clk); + seq_printf(s, "LP_CLK\t\t%lu\n", dsi->current_lp_cinfo.lp_clk); dsi_runtime_put(dsidev); } @@ -5110,8 +5118,8 @@ static int dsi_set_config(struct omap_dss_device *dssdev, dsi_pll_calc_dsi_fck(&ctx.dsi_cinfo); - r = dsi_lp_clock_calc(&ctx.dsi_cinfo, config->lp_clk_min, - config->lp_clk_max); + r = dsi_lp_clock_calc(ctx.dsi_cinfo.dsi_pll_hsdiv_dsi_clk, + config->lp_clk_min, config->lp_clk_max, &dsi->user_lp_cinfo); if (r) { DSSERR("failed to find suitable DSI LP clock settings\n"); goto err; diff --git a/drivers/video/fbdev/omap2/dss/dss.h b/drivers/video/fbdev/omap2/dss/dss.h index 2defcaedbef5..712592d2e5f7 100644 --- a/drivers/video/fbdev/omap2/dss/dss.h +++ b/drivers/video/fbdev/omap2/dss/dss.h @@ -119,7 +119,6 @@ struct dsi_clock_info { * OMAP4: PLLx_CLK1 */ unsigned long dsi_pll_hsdiv_dsi_clk; /* OMAP3: DSI2_PLL_CLK * OMAP4: PLLx_CLK2 */ - unsigned long lp_clk; /* dividers */ u16 regn; @@ -128,7 +127,6 @@ struct dsi_clock_info { * OMAP4: REGM4 */ u16 regm_dsi; /* OMAP3: REGM4 * OMAP4: REGM5 */ - u16 lp_clk_div; }; struct dss_lcd_mgr_config { -- 2.11.0