hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

ARM: davinci: da850-evm: use GPIO hogs instead of the legacy API 

In order to drop the hard-coded GPIO base values from the davinci GPIO
driver's platform data, we first need to get rid of all calls to the
legacy GPIO functions. Convert the mdio configuration to hogging the
relevant GPIO line in the da850-evm board file.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
This commit is contained in:
Bartosz Golaszewski 2019-02-05 10:49:37 +01:00 committed by Sekhar Nori
parent e430685f49
commit ca107e35e6
1 changed files with 14 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
arch/arm/mach-davinci/board-da850-evm.c
View File

@ -1038,6 +1038,17 @@ static const short da850_evm_rmii_pins[] = {
-1
};
static struct gpiod_hog da850_evm_emac_gpio_hogs[] = {
{
.chip_label = "davinci_gpio",
.chip_hwnum = DA850_MII_MDIO_CLKEN_PIN,
.line_name = "mdio_clk_en",
.lflags = 0,
/* dflags set in da850_evm_config_emac() */
},
{ }
};
static int __init da850_evm_config_emac(void)
{
void __iomem *cfg_chip3_base;
@ -1076,14 +1087,9 @@ static int __init da850_evm_config_emac(void)
if (ret)
pr_warn("%s:GPIO(2,6) mux setup failed\n", __func__);
ret = gpio_request(DA850_MII_MDIO_CLKEN_PIN, "mdio_clk_en");
if (ret) {
pr_warn("Cannot open GPIO %d\n", DA850_MII_MDIO_CLKEN_PIN);
return ret;
}
/* Enable/Disable MII MDIO clock */
gpio_direction_output(DA850_MII_MDIO_CLKEN_PIN, rmii_en);
da850_evm_emac_gpio_hogs[0].dflags = rmii_en ? GPIOD_OUT_HIGH
: GPIOD_OUT_LOW;
gpiod_add_hogs(da850_evm_emac_gpio_hogs);
soc_info->emac_pdata->phy_id = DA850_EVM_PHY_ID;