From: Fabio Estevam <fabio.estevam@freescale.com>
To: <shawnguo@kernel.org>
Cc: Fabio Estevam <fabio.estevam@freescale.com>,
linux@arm.linux.org.uk, mturquette@baylibre.com,
eric.nelson@boundarydevices.com, vladimir_zapolskiy@mentor.com,
kernel@pengutronix.de, Ying.liu@freescale.com,
linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 2/2] clk: imx: clk-imx6q: Provide initial IPU clock settings for mx6dl
Date: Fri, 26 Jun 2015 14:10:54 -0300 [thread overview]
Message-ID: <1435338654-9098-2-git-send-email-fabio.estevam@freescale.com> (raw)
In-Reply-To: <1435338654-9098-1-git-send-email-fabio.estevam@freescale.com>
Currently it is not possible to use HDMI and LVDS at the same time on a
imx6dl-sabresd board.
Fix this usecase by setting IMX6QDL_CLK_PLL3_PFD1_540M to 540MHz and
also by setting it as the parent of IMX6QDL_CLK_IPU1_SEL.
Based on the configuration done in the FSL kernel.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
Changes since v2:
- Move clk_set_rate for PLL3_PFD1_540M outside the if block as suggested
by Vladimir Zapolskiy.
drivers/clk/imx/clk-imx6q.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/clk/imx/clk-imx6q.c b/drivers/clk/imx/clk-imx6q.c
index d046f8e..c507bca 100644
--- a/drivers/clk/imx/clk-imx6q.c
+++ b/drivers/clk/imx/clk-imx6q.c
@@ -494,6 +494,10 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
clk_set_parent(clk[IMX6QDL_CLK_LDB_DI1_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]);
}
+ clk_set_rate(clk[IMX6QDL_CLK_PLL3_PFD1_540M], 540000000);
+ if (clk_on_imx6dl())
+ clk_set_parent(clk[IMX6QDL_CLK_IPU1_SEL], clk[IMX6QDL_CLK_PLL3_PFD1_540M]);
+
clk_set_parent(clk[IMX6QDL_CLK_IPU1_DI0_PRE_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]);
clk_set_parent(clk[IMX6QDL_CLK_IPU1_DI1_PRE_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]);
clk_set_parent(clk[IMX6QDL_CLK_IPU2_DI0_PRE_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]);
--
1.9.1
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WARNING: multiple messages have this Message-ID (diff)
From: fabio.estevam@freescale.com (Fabio Estevam)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 2/2] clk: imx: clk-imx6q: Provide initial IPU clock settings for mx6dl
Date: Fri, 26 Jun 2015 14:10:54 -0300 [thread overview]
Message-ID: <1435338654-9098-2-git-send-email-fabio.estevam@freescale.com> (raw)
In-Reply-To: <1435338654-9098-1-git-send-email-fabio.estevam@freescale.com>
Currently it is not possible to use HDMI and LVDS at the same time on a
imx6dl-sabresd board.
Fix this usecase by setting IMX6QDL_CLK_PLL3_PFD1_540M to 540MHz and
also by setting it as the parent of IMX6QDL_CLK_IPU1_SEL.
Based on the configuration done in the FSL kernel.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
Changes since v2:
- Move clk_set_rate for PLL3_PFD1_540M outside the if block as suggested
by Vladimir Zapolskiy.
drivers/clk/imx/clk-imx6q.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/clk/imx/clk-imx6q.c b/drivers/clk/imx/clk-imx6q.c
index d046f8e..c507bca 100644
--- a/drivers/clk/imx/clk-imx6q.c
+++ b/drivers/clk/imx/clk-imx6q.c
@@ -494,6 +494,10 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
clk_set_parent(clk[IMX6QDL_CLK_LDB_DI1_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]);
}
+ clk_set_rate(clk[IMX6QDL_CLK_PLL3_PFD1_540M], 540000000);
+ if (clk_on_imx6dl())
+ clk_set_parent(clk[IMX6QDL_CLK_IPU1_SEL], clk[IMX6QDL_CLK_PLL3_PFD1_540M]);
+
clk_set_parent(clk[IMX6QDL_CLK_IPU1_DI0_PRE_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]);
clk_set_parent(clk[IMX6QDL_CLK_IPU1_DI1_PRE_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]);
clk_set_parent(clk[IMX6QDL_CLK_IPU2_DI0_PRE_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]);
--
1.9.1
next prev parent reply other threads:[~2015-06-26 17:10 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-26 17:10 [PATCH v3 1/2] ARM: dts: imx6qdl-sabresd: Allow HDMI and LVDS to work simultaneously Fabio Estevam
2015-06-26 17:10 ` Fabio Estevam
2015-06-26 17:10 ` Fabio Estevam [this message]
2015-06-26 17:10 ` [PATCH v3 2/2] clk: imx: clk-imx6q: Provide initial IPU clock settings for mx6dl Fabio Estevam
2015-07-13 8:39 ` [PATCH v3 1/2] ARM: dts: imx6qdl-sabresd: Allow HDMI and LVDS to work simultaneously Shawn Guo
2015-07-13 8:39 ` Shawn Guo
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