From: Tony Lindgren <tony@atomide.com>
To: linux-omap@vger.kernel.org
Cc: Nishanth Menon <nm@ti.com>, Tero Kristo <t-kristo@ti.com>,
Dave Gerlach <d-gerlach@ti.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org,
Peter Ujfalusi <peter.ujfalusi@ti.com>,
devicetree@vger.kernel.org, Faiz Abbas <faiz_abbas@ti.com>,
Keerthy <j-keerthy@ti.com>, Suman Anna <s-anna@ti.com>,
Rob Herring <robh@kernel.org>,
linux-arm-kernel@lists.infradead.org,
Roger Quadros <rogerq@ti.com>
Subject: [PATCH 02/13] bus: ti-sysc: Support 16-bit writes too
Date: Mon, 27 May 2019 23:24:03 -0700 [thread overview]
Message-ID: <20190528062414.27192-3-tony@atomide.com> (raw)
In-Reply-To: <20190528062414.27192-1-tony@atomide.com>
We need to also support 16-bit writes for i2c in addition to the reads
when we start configuring the sysconfig register for reset and idle modes.
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
drivers/bus/ti-sysc.c | 7 +++++++
1 file changed, 7 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
@@ -100,6 +100,13 @@ static void sysc_parse_dts_quirks(struct sysc *ddata, struct device_node *np,
static void sysc_write(struct sysc *ddata, int offset, u32 value)
{
+ if (ddata->cfg.quirks & SYSC_QUIRK_16BIT) {
+ writew_relaxed(value & 0xffff, ddata->module_va + offset);
+ writew_relaxed(value >> 16, ddata->module_va + offset + 4);
+
+ return;
+ }
+
writel_relaxed(value, ddata->module_va + offset);
}
--
2.21.0
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next prev parent reply other threads:[~2019-05-28 6:24 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-28 6:24 [PATCHv2 00/13] ti-sysc driver changes to drop custom hwmods property Tony Lindgren
2019-05-28 6:24 ` [PATCH 01/13] bus: ti-sysc: Add support for missing clockdomain handling Tony Lindgren
2019-05-28 6:24 ` Tony Lindgren [this message]
2019-05-28 6:24 ` [PATCH 03/13] bus: ti-sysc: Make OCP reset work for sysstatus and sysconfig reset bits Tony Lindgren
2019-05-28 6:24 ` [PATCH 04/13] bus: ti-sysc: Allow QUIRK_LEGACY_IDLE even if legacy_mode is not set Tony Lindgren
2019-05-28 6:24 ` [PATCH 05/13] bus: ti-sysc: Enable interconnect target module autoidle bit on enable Tony Lindgren
2019-05-28 6:24 ` [PATCH 06/13] bus: ti-sysc: Handle clockactivity for enable and disable Tony Lindgren
2019-05-28 6:24 ` [PATCH 07/13] bus: ti-sysc: Handle swsup idle mode quirks Tony Lindgren
2019-05-28 6:24 ` [PATCH 08/13] bus: ti-sysc: Set ENAWAKEUP if available Tony Lindgren
2019-05-28 6:24 ` [PATCH 09/13] bus: ti-sysc: Add support for disabling module without legacy mode Tony Lindgren
2019-05-28 6:24 ` [PATCH 10/13] bus: ti-sysc: Do rstctrl reset handling in two phases Tony Lindgren
2019-05-28 6:24 ` [PATCH 11/13] bus: ti-sysc: Detect uarts also on omap34xx Tony Lindgren
2019-05-28 6:24 ` [PATCH 12/13] ARM: dts: Drop legacy custom hwmods property for omap4 uart Tony Lindgren
2019-05-28 6:24 ` [PATCH 13/13] ARM: dts: Drop legacy custom hwmods property for omap4 mmc Tony Lindgren
2019-05-28 8:02 ` [PATCHv2 00/13] ti-sysc driver changes to drop custom hwmods property Keerthy
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