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authorAlex Frid <afrid@nvidia.com>2017-07-25 13:34:14 +0300
committerStephen Boyd <sboyd@codeaurora.org>2017-08-23 16:00:33 -0700
commit71422dbb89ee4198c705ad14c75bfc72625f95c2 (patch)
treeb1fadd5849d53f58300cd6fd32812b10f534d792 /drivers/clk
parent2f924ac33f6bd46dcf1d1374401515ada5a35f21 (diff)
downloadlinux-71422dbb89ee4198c705ad14c75bfc72625f95c2.tar.gz
clk: tegra: Correct Tegra210 UTMIPLL poweron delay
Increased Tegra210 UTMIPLL power on delay to 20us (spec maximum is 15us).
Also remove a few empty lines to make it more clear the ACTIVE_DLY_COUNT
and ENABLE_DLY_COUNT fields.

Signed-off-by: Alex Frid <afrid@nvidia.com>
Reviewed-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Jon Mayo <jmayo@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Diffstat (limited to 'drivers/clk')
-rw-r--r--drivers/clk/tegra/clk-tegra210.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/clk/tegra/clk-tegra210.c b/drivers/clk/tegra/clk-tegra210.c
index 4fa7ab31fb66..fd04b0e501b7 100644
--- a/drivers/clk/tegra/clk-tegra210.c
+++ b/drivers/clk/tegra/clk-tegra210.c
@@ -2472,15 +2472,14 @@ static void tegra210_utmi_param_configure(void)
 	reg |= UTMIP_PLL_CFG2_STABLE_COUNT(utmi_parameters[i].stable_count);
 
 	reg &= ~UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(~0);
-
 	reg |=
 	UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(utmi_parameters[i].active_delay_count);
 	writel_relaxed(reg, clk_base + UTMIP_PLL_CFG2);
 
 	/* Program UTMIP PLL delay and oscillator frequency counts */
 	reg = readl_relaxed(clk_base + UTMIP_PLL_CFG1);
-	reg &= ~UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(~0);
 
+	reg &= ~UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(~0);
 	reg |=
 	UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(utmi_parameters[i].enable_delay_count);
 
@@ -2496,7 +2495,8 @@ static void tegra210_utmi_param_configure(void)
 	reg &= ~UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERDOWN;
 	reg |= UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERUP;
 	writel_relaxed(reg, clk_base + UTMIP_PLL_CFG1);
-	udelay(1);
+
+	udelay(20);
 
 	/* Enable samplers for SNPS, XUSB_HOST, XUSB_DEV */
 	reg = readl_relaxed(clk_base + UTMIP_PLL_CFG2);