From: Tony Lindgren <tony@atomide.com>
To: linux-omap@vger.kernel.org
Cc: Dave Gerlach <d-gerlach@ti.com>, Faiz Abbas <faiz_abbas@ti.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Grygorii Strashko <grygorii.strashko@ti.com>,
Keerthy <j-keerthy@ti.com>, Nishanth Menon <nm@ti.com>,
Peter Ujfalusi <peter.ujfalusi@ti.com>,
Roger Quadros <rogerq@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,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Michael Turquette <mturquette@baylibre.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
Santosh Shilimkar <ssantosh@kernel.org>,
Stephen Boyd <sboyd@kernel.org>,
linux-clk@vger.kernel.org, linux-remoteproc@vger.kernel.org
Subject: [PATCH 4/9] bus: ti-sysc: Support modules without control registers
Date: Tue, 10 Nov 2020 13:20:37 +0200 [thread overview]
Message-ID: <20201110112042.65489-5-tony@atomide.com> (raw)
In-Reply-To: <20201110112042.65489-1-tony@atomide.com>
Some modules like MPU have a powerdomain and functional clock but not
necessarily any control registers. Let's allow configuring interconnect
target modules with no control registers.
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
@@ -853,8 +853,12 @@ static int sysc_ioremap(struct sysc *ddata)
*/
static int sysc_map_and_check_registers(struct sysc *ddata)
{
+ struct device_node *np = ddata->dev->of_node;
int error;
+ if (!of_get_property(np, "reg", NULL))
+ return 0;
+
error = sysc_parse_and_check_child_range(ddata);
if (error)
return error;
@@ -2911,6 +2915,9 @@ static int sysc_probe(struct platform_device *pdev)
if (!ddata)
return -ENOMEM;
+ ddata->offsets[SYSC_REVISION] = -ENODEV;
+ ddata->offsets[SYSC_SYSCONFIG] = -ENODEV;
+ ddata->offsets[SYSC_SYSSTATUS] = -ENODEV;
ddata->dev = &pdev->dev;
platform_set_drvdata(pdev, ddata);
--
2.29.2
next prev parent reply other threads:[~2020-11-10 11:21 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-10 11:20 [PATCHv2 0/9] Genpd related code changes to drop am335x pdata Tony Lindgren
2020-11-10 11:20 ` [PATCH 1/9] ARM: OMAP2+: Check for inited flag Tony Lindgren
2020-11-10 11:20 ` [PATCH 2/9] ARM: OMAP2+: Probe PRCM first to probe l4_wkup with simple-pm-bus Tony Lindgren
2020-11-10 11:20 ` [PATCH 3/9] clk: ti: am33xx: Keep am3 l3 main clock always on for genpd Tony Lindgren
2020-12-09 2:20 ` Stephen Boyd
2020-11-10 11:20 ` Tony Lindgren [this message]
2020-11-10 11:20 ` [PATCH 5/9] bus: ti-sysc: Implement GPMC debug quirk to drop platform data Tony Lindgren
2020-11-10 11:20 ` [PATCH 6/9] soc: ti: omap-prm: Add pm_clk for genpd Tony Lindgren
2020-11-10 11:20 ` [PATCH 7/9] soc: ti: omap-prm: am3: add genpd support for remaining PRM instances Tony Lindgren
2020-11-10 11:20 ` [PATCH 8/9] soc: ti: pm33xx: Enable basic PM runtime support for genpd Tony Lindgren
2020-11-10 11:20 ` [PATCH 9/9] remoteproc/wkup_m3: Use reset control driver if available Tony Lindgren
-- strict thread matches above, loose matches on Subject: below --
2020-10-26 11:10 [PATCH 0/9] Genpd related code changes to drop am335x pdata Tony Lindgren
2020-10-26 11:10 ` [PATCH 4/9] bus: ti-sysc: Support modules without control registers Tony Lindgren
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