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authorColin Foster <colin.foster@in-advantage.com>2022-09-05 09:21:29 -0700
committerLee Jones <lee@kernel.org>2022-09-09 07:54:39 +0100
commit68c873363a788b604914c01269f8eac9779d9dd4 (patch)
tree572163278f72b4efcd7ec70b4cdf4cc4a8a77404
parent2f65923c5032c9de0d898636d4cd25da5d58e9a7 (diff)
downloadlinux-68c873363a788b604914c01269f8eac9779d9dd4.tar.bz2
pinctrl: microchip-sgpio: add ability to be used in a non-mmio configuration
There are a few Ocelot chips that can contain SGPIO logic, but can be controlled externally. Specifically the VSC7511, 7512, 7513, and 7514. In the externally controlled configurations these registers are not memory-mapped. Add support for these non-memory-mapped configurations. Signed-off-by: Colin Foster <colin.foster@in-advantage.com> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20220905162132.2943088-6-colin.foster@in-advantage.com
-rw-r--r--drivers/pinctrl/pinctrl-microchip-sgpio.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/pinctrl/pinctrl-microchip-sgpio.c b/drivers/pinctrl/pinctrl-microchip-sgpio.c
index e56074b7e659..2b4167a09b3b 100644
--- a/drivers/pinctrl/pinctrl-microchip-sgpio.c
+++ b/drivers/pinctrl/pinctrl-microchip-sgpio.c
@@ -12,6 +12,7 @@
#include <linux/clk.h>
#include <linux/gpio/driver.h>
#include <linux/io.h>
+#include <linux/mfd/ocelot.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/pinctrl/pinmux.h>
@@ -904,7 +905,6 @@ static int microchip_sgpio_probe(struct platform_device *pdev)
struct reset_control *reset;
struct sgpio_priv *priv;
struct clk *clk;
- u32 __iomem *regs;
u32 val;
struct regmap_config regmap_config = {
.reg_bits = 32,
@@ -937,11 +937,7 @@ static int microchip_sgpio_probe(struct platform_device *pdev)
return -EINVAL;
}
- regs = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(regs))
- return PTR_ERR(regs);
-
- priv->regs = devm_regmap_init_mmio(dev, regs, &regmap_config);
+ priv->regs = ocelot_regmap_from_resource(pdev, 0, &regmap_config);
if (IS_ERR(priv->regs))
return PTR_ERR(priv->regs);