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dm: Fix error handling for dev_read_addr_ptr

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dev_read_addr_ptr had different semantics depending on whether OF_LIVE was
enabled. This patch converts both implementations to return NULL on error,
and converts all call sites which check for FDT_ADDR_T_NONE to check for
NULL instead. This patch also removes the call to map_physmem, since we
have dev_remap_addr* for those semantics.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Sean Anderson 2020-06-24 06:41:13 -04:00 • committed by Andes
parent 4a3390f1d3
commit 082faeb865
5 changed files with 7 additions and 5 deletions
drivers
clk/imx
clk-imx8mp.c
core
read.c
pinctrl
broadcom
pinctrl-bcm283x.c
mediatek
pinctrl-mtk-common.c
include/dm
read.h

2
drivers/clk/imx/clk-imx8mp.c
View file

@ -282,7 +282,7 @@ static int imx8mp_clk_probe(struct udevice *dev)
clk_dm(IMX8MP_SYS_PLL2_1000M, imx_clk_fixed_factor("sys_pll2_1000m", "sys_pll2_out", 1, 1));
base = dev_read_addr_ptr(dev);
if (base == (void *)FDT_ADDR_T_NONE)
if (!base)
return -EINVAL;
clk_dm(IMX8MP_CLK_A53_SRC, imx_clk_mux2("arm_a53_src", base + 0x8000, 24, 3, imx8mp_a53_sels, ARRAY_SIZE(imx8mp_a53_sels)));

2
drivers/core/read.c
View file

@ -167,7 +167,7 @@ void *dev_read_addr_ptr(const struct udevice *dev)
{
fdt_addr_t addr = dev_read_addr(dev);
return (addr == FDT_ADDR_T_NONE) ? NULL : map_sysmem(addr, 0);
return (addr == FDT_ADDR_T_NONE) ? NULL : (void *)(uintptr_t)addr;
}
void *dev_remap_addr(const struct udevice *dev)

2
drivers/pinctrl/broadcom/pinctrl-bcm283x.c
View file

@ -117,7 +117,7 @@ int bcm283x_pinctl_probe(struct udevice *dev)
}
priv->base_reg = dev_read_addr_ptr(dev);
if (priv->base_reg == (void *)FDT_ADDR_T_NONE) {
if (!priv->base_reg) {
debug("%s: Failed to get base address\n", __func__);
return -EINVAL;
}

2
drivers/pinctrl/mediatek/pinctrl-mtk-common.c
View file

@ -631,7 +631,7 @@ int mtk_pinctrl_common_probe(struct udevice *dev,
int ret;
priv->base = dev_read_addr_ptr(dev);
if (priv->base == (void *)FDT_ADDR_T_NONE)
if (!priv->base)
return -EINVAL;
priv->soc = soc;

4
include/dm/read.h
View file

@ -799,7 +799,9 @@ static inline fdt_addr_t dev_read_addr(const struct udevice *dev)
static inline void *dev_read_addr_ptr(const struct udevice *dev)
{
return devfdt_get_addr_ptr(dev);
void *addr = devfdt_get_addr_ptr(dev);
return ((fdt_addr_t)(uintptr_t)addr == FDT_ADDR_T_NONE) ? NULL : addr;
}
static inline fdt_addr_t dev_read_addr_pci(const struct udevice *dev)