linux-kernel - [PATCH 3.9-stable] arm: omap2: fix AM33xx hwmod infos for UART2

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Message-id: <000301ce6af4$570edf40$052c9dc0$%choi@samsung.com>
Date:	Mon, 17 Jun 2013 09:48:09 +0900
From:	Jonghwan Choi <jhbird.choi@...sung.com>
To:	'Jonghwan Choi' <jhbird.choi@...sung.com>,
	linux-kernel@...r.kernel.org
Cc:	stable@...r.kernel.org,
	'Thomas Petazzoni' <thomas.petazzoni@...e-electrons.com>,
	'Tony Lindgren' <tony@...mide.com>
Subject: [PATCH 3.9-stable] arm: omap2: fix AM33xx hwmod infos for UART2

This patch looks like it should be in the 3.9-stable tree, should we apply
it?

------------------

From: "Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>"

commit 768dc16397fb18c9de209cbcb84d890b8279faa7 upstream

The UART2 hwmod structure is pointing to the EDMA channels of UART1,
which doesn't look right. This patch fixes this by making the UART2
hwmod structure to a new structure that lists the EDMA channels to be
used by the UART2.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
Acked-by: Vaibhav Hiremath <hvaibhav@...com>
[paul@...an.com: updated to apply]
Signed-off-by: Paul Walmsley <paul@...an.com>
Signed-off-by: Jonghwan Choi <jhbird.choi@...sung.com>
---
 arch/arm/mach-omap2/omap_hwmod_33xx_data.c |    9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
index 26eee4a..6a57150 100644
--- a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
@@ -1979,6 +1979,13 @@ static struct omap_hwmod am33xx_uart1_hwmod = {
 	},
 };
 
+/* uart2 */
+static struct omap_hwmod_dma_info uart2_edma_reqs[] = {
+	{ .name = "tx",	.dma_req = 28, },
+	{ .name = "rx",	.dma_req = 29, },
+	{ .dma_req = -1 }
+};
+
 static struct omap_hwmod_irq_info am33xx_uart2_irqs[] = {
 	{ .irq = 73 + OMAP_INTC_START, },
 	{ .irq = -1 },
@@ -1989,7 +1996,7 @@ static struct omap_hwmod am33xx_uart2_hwmod = {
 	.class		= &uart_class,
 	.clkdm_name	= "l4ls_clkdm",
 	.mpu_irqs	= am33xx_uart2_irqs,
-	.sdma_reqs	= uart1_edma_reqs,
+	.sdma_reqs	= uart2_edma_reqs,
 	.main_clk	= "dpll_per_m2_div4_ck",
 	.prcm		= {
 		.omap4	= {
-- 
1.7.9.5

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