regulator: ti-abb: Make use of the helper function devm_ioremap related

Use the devm_platform_ioremap_resource_byname() helper instead of
calling platform_get_resource_byname() and devm_ioremap/devm_ioremap_resource()
separately

Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Link: https://lore.kernel.org/r/20210908105745.1984-1-caihuoqing@baidu.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/regulator/ti-abb-regulator.c b/drivers/regulator/ti-abb-regulator.c
index 9f0a4d50cead4091f448aacf564e59d968f7048d..2931a0b89bffbf7ada9eb3779441e9f332f23241 100644 (file)
--- a/drivers/regulator/ti-abb-regulator.c
+++ b/drivers/regulator/ti-abb-regulator.c
@@ -725,9 +725,7 @@ static int ti_abb_probe(struct platform_device *pdev)
 
        /* Map ABB resources */
        if (abb->regs->setup_off || abb->regs->control_off) {
-               pname = "base-address";
-               res = platform_get_resource_byname(pdev, IORESOURCE_MEM, pname);
-               abb->base = devm_ioremap_resource(dev, res);
+               abb->base = devm_platform_ioremap_resource_byname(pdev, "base-address");
                if (IS_ERR(abb->base))
                        return PTR_ERR(abb->base);
 
@@ -735,35 +733,18 @@ static int ti_abb_probe(struct platform_device *pdev)
                abb->control_reg = abb->base + abb->regs->control_off;
 
        } else {
-               pname = "control-address";
-               res = platform_get_resource_byname(pdev, IORESOURCE_MEM, pname);
-               abb->control_reg = devm_ioremap_resource(dev, res);
+               abb->control_reg = devm_platform_ioremap_resource_byname(pdev, "control-address");
                if (IS_ERR(abb->control_reg))
                        return PTR_ERR(abb->control_reg);
 
-               pname = "setup-address";
-               res = platform_get_resource_byname(pdev, IORESOURCE_MEM, pname);
-               abb->setup_reg = devm_ioremap_resource(dev, res);
+               abb->setup_reg = devm_platform_ioremap_resource_byname(pdev, "setup-address");
                if (IS_ERR(abb->setup_reg))
                        return PTR_ERR(abb->setup_reg);
        }
 
-       pname = "int-address";
-       res = platform_get_resource_byname(pdev, IORESOURCE_MEM, pname);
-       if (!res) {
-               dev_err(dev, "Missing '%s' IO resource\n", pname);
-               return -ENODEV;
-       }
-       /*
-        * We may have shared interrupt register offsets which are
-        * write-1-to-clear between domains ensuring exclusivity.
-        */
-       abb->int_base = devm_ioremap(dev, res->start,
-                                            resource_size(res));
-       if (!abb->int_base) {
-               dev_err(dev, "Unable to map '%s'\n", pname);
-               return -ENOMEM;
-       }
+       abb->int_base = devm_platform_ioremap_resource_byname(pdev, "int-address");
+       if (IS_ERR(abb->int_base))
+               return PTR_ERR(abb->int_base);
 
        /* Map Optional resources */
        pname = "efuse-address";