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List: linux-sh
Subject: [PATCH 10/13] pinctrl: sh-pfc: checker: Add bias register checks
From: Geert Uytterhoeven <geert+renesas () glider ! be>
Date: 2020-01-10 13:19:24
Message-ID: 20200110131927.1029-11-geert+renesas () glider ! be
[Download RAW message or body]
Add checks for bias register descriptors:
1. Pull-up and optional pull-down register addresses must be unique,
2. Referred pins must exist.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
drivers/pinctrl/sh-pfc/core.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/pinctrl/sh-pfc/core.c b/drivers/pinctrl/sh-pfc/core.c
index a1667a29dd69c3ff..b737aa5978b7daa4 100644
--- a/drivers/pinctrl/sh-pfc/core.c
+++ b/drivers/pinctrl/sh-pfc/core.c
@@ -888,6 +888,18 @@ static void __init sh_pfc_check_drive_reg(const struct sh_pfc_soc_info *info,
}
}
+static void __init sh_pfc_check_bias_reg(const struct sh_pfc_soc_info *info,
+ const struct pinmux_bias_reg *bias)
+{
+ unsigned int i;
+
+ sh_pfc_check_reg(info->name, bias->puen);
+ if (bias->pud)
+ sh_pfc_check_reg(info->name, bias->pud);
+ for (i = 0; i < ARRAY_SIZE(bias->pins); i++)
+ sh_pfc_check_pin(info, bias->puen, bias->pins[i]);
+}
+
static void __init sh_pfc_check_info(const struct sh_pfc_soc_info *info)
{
const char *drvname = info->name;
@@ -984,6 +996,10 @@ static void __init sh_pfc_check_info(const struct sh_pfc_soc_info *info)
/* Check drive strength registers */
for (i = 0; info->drive_regs && info->drive_regs[i].reg; i++)
sh_pfc_check_drive_reg(info, &info->drive_regs[i]);
+
+ /* Check bias registers */
+ for (i = 0; info->bias_regs && info->bias_regs[i].puen; i++)
+ sh_pfc_check_bias_reg(info, &info->bias_regs[i]);
}
static void __init sh_pfc_check_driver(const struct platform_driver *pdrv)
--
2.17.1
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