linux-kernel - [PATCH 3.12 045/144] ARM: DRA7: hwmod: Fix boot crash with DEBUG

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Message-Id: <20140106223746.630763415@linuxfoundation.org>
Date:	Mon,  6 Jan 2014 14:36:46 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Lokesh Vutla <lokeshvutla@...com>,
	Rajendra Nayak <rnayak@...com>, Paul Walmsley <paul@...an.com>
Subject: [PATCH 3.12 045/144] ARM: DRA7: hwmod: Fix boot crash with DEBUG_LL

3.12-stable review patch.  If anyone has any objections, please let me know.

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

From: Rajendra Nayak <rnayak@...com>

commit 38958c15dc640a9249e4f0cd0dfb0ddc7a23464d upstream.

With commit '7dedd34: ARM: OMAP2+: hwmod: Fix a crash in _setup_reset() with
 DEBUG_LL' we moved from parsing cmdline to identify uart used for earlycon
to using the requsite hwmod CONFIG_DEBUG_OMAPxUARTy FLAGS.

On DRA7 though, we seem to be missing this flag, and atleast on the DRA7 EVM
where we use uart1 for console, boot fails with DEBUG_LL enabled.

Reported-by: Lokesh Vutla <lokeshvutla@...com>
Tested-by:  Lokesh Vutla <lokeshvutla@...com> # on a different base
Signed-off-by: Rajendra Nayak <rnayak@...com>
Fixes: 7dedd346941d ("ARM: OMAP2+: hwmod: Fix a crash in _setup_reset() with DEBUG_LL")
Signed-off-by: Paul Walmsley <paul@...an.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm/mach-omap2/omap_hwmod_7xx_data.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
@@ -1637,7 +1637,7 @@ static struct omap_hwmod dra7xx_uart1_hw
 	.class		= &dra7xx_uart_hwmod_class,
 	.clkdm_name	= "l4per_clkdm",
 	.main_clk	= "uart1_gfclk_mux",
-	.flags		= HWMOD_SWSUP_SIDLE_ACT,
+	.flags		= HWMOD_SWSUP_SIDLE_ACT | DEBUG_OMAP2UART1_FLAGS,
 	.prcm = {
 		.omap4 = {
 			.clkctrl_offs = DRA7XX_CM_L4PER_UART1_CLKCTRL_OFFSET,


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