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From: Tony Lindgren <tony@atomide.com>
To: linux-omap@vger.kernel.org
Cc: Dave Gerlach <d-gerlach@ti.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Nishanth Menon <nm@ti.com>, Suman Anna <s-anna@ti.com>,
	Tero Kristo <t-kristo@ti.com>,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH 14/16] bus: ti-sysc: Detect UARTs for SYSC_QUIRK_LEGACY_IDLE quirk on omap4
Date: Mon, 23 Apr 2018 10:45:47 -0700	[thread overview]
Message-ID: <20180423174549.57412-15-tony@atomide.com> (raw)
In-Reply-To: <20180423174549.57412-1-tony@atomide.com>

Starting with omap4, UARTs have different revision register that we need to
detect to enable SYSC_QUIRK_LEGACY_IDLE. Otherwise UARTs won't idle properly.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 drivers/bus/ti-sysc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -880,6 +880,9 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = {
 		   SYSC_QUIRK_LEGACY_IDLE),
 	SYSC_QUIRK("uart", 0, 0x50, 0x54, 0x58, 0x00000052, 0xffffffff,
 		   SYSC_QUIRK_LEGACY_IDLE),
+	/* Uarts on omap4 and later */
+	SYSC_QUIRK("uart", 0, 0x50, 0x54, 0x58, 0x50411e03, 0xffffffff,
+		   SYSC_QUIRK_LEGACY_IDLE),
 };
 
 static void sysc_init_revision_quirks(struct sysc *ddata)
-- 
2.17.0

  parent reply	other threads:[~2018-04-23 17:45 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-23 17:45 [PATCH 00/16] ti-sysc driver changes to support more devices Tony Lindgren
2018-04-23 17:45 ` [PATCH 01/16] ARM: OMAP2+: Drop unused pm-noop Tony Lindgren
2018-04-30 18:57   ` Mauro Carvalho Chehab
2018-04-23 17:45 ` [PATCH 02/16] ARM: OMAP2+: Allow using ti-sysc for system timers Tony Lindgren
2018-04-23 17:45 ` [PATCH 03/16] ARM: OMAP2+: Use signed value for sysc register offsets Tony Lindgren
2018-04-23 17:45 ` [PATCH 04/16] ARM: OMAP2+: Only probe SDMA via ti-sysc if configured in dts Tony Lindgren
2018-04-23 17:45 ` [PATCH 05/16] ARM: OMAP2+: Initialize SoC PM later Tony Lindgren
2018-04-23 17:45 ` [PATCH 06/16] ARM: OMAP2+: Make display related init into device_initcall Tony Lindgren
2018-04-23 17:45 ` [PATCH 07/16] bus: ti-sysc: Handle simple-bus for nested children Tony Lindgren
2018-04-23 17:45 ` [PATCH 08/16] bus: ti-sysc: Make child clock alias handling more generic Tony Lindgren
2018-04-23 17:45 ` [PATCH 09/16] bus: ti-sysc: Add handling for clkctrl opt clocks Tony Lindgren
2018-05-01 13:39   ` Rob Herring
2018-04-23 17:45 ` [PATCH 10/16] bus: ti-sysc: Tag some modules resource providers for noirq suspend Tony Lindgren
2018-04-23 17:45 ` [PATCH 11/16] bus: ti-sysc: Improve suspend and resume handling Tony Lindgren
2018-04-23 17:45 ` [PATCH 12/16] bus: ti-sysc: Add initial support for external resets Tony Lindgren
2018-04-23 17:45 ` [PATCH 13/16] bus: ti-sysc: Detect omap4 type timers for quirk Tony Lindgren
2018-04-23 17:45 ` Tony Lindgren [this message]
2018-04-23 17:45 ` [PATCH 15/16] bus: ti-sysc: Tag sdio and wdt with legacy mode for suspend Tony Lindgren
2018-04-23 17:45 ` [PATCH 16/16] bus: ti-sysc: Show module information for suspend if DEBUG is enabled Tony Lindgren

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