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| author | Chen-Yu Tsai <wens@csie.org> | 2014-05-22 23:20:55 +0800 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2014-05-27 11:26:01 +0200 |
| commit | b4575c699882346c0c18e93bb5173c2689965c7b (patch) | |
| tree | 45b0036476c6ef28dc9637fc9eba788306ab5e91 /drivers/pinctrl/sunxi | |
| parent | 2cc140fe360732bc5467df3ad932685c76078dd4 (diff) | |
| download | linux-b4575c699882346c0c18e93bb5173c2689965c7b.tar.gz | |
pinctrl: sunxi: fix pin numbers passed to register offset helpers
The pin numbers passed to sunxi_*_reg helpers to get the correct registers should be the pin offset for the PIO block, not the absolute number we use that is based on the alphanumeric labels Allwinner uses. This patch subtracts .pin_base from the pin number passed to these functions, so the driver accesses the correct registers. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/sunxi')
| -rw-r--r-- | drivers/pinctrl/sunxi/pinctrl-sunxi.c | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.c b/drivers/pinctrl/sunxi/pinctrl-sunxi.c index 6dfc172af9d3..42963480848d 100644 --- a/drivers/pinctrl/sunxi/pinctrl-sunxi.c +++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.c @@ -280,6 +280,7 @@ static int sunxi_pconf_group_set(struct pinctrl_dev *pctldev, struct sunxi_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); struct sunxi_pinctrl_group *g = &pctl->groups[group]; unsigned long flags; + unsigned pin = g->pin - pctl->desc->pin_base; u32 val, mask; u16 strength; u8 dlevel; @@ -303,23 +304,23 @@ static int sunxi_pconf_group_set(struct pinctrl_dev *pctldev, * 3: 40mA */ dlevel = strength / 10 - 1; - val = readl(pctl->membase + sunxi_dlevel_reg(g->pin)); - mask = DLEVEL_PINS_MASK << sunxi_dlevel_offset(g->pin); + val = readl(pctl->membase + sunxi_dlevel_reg(pin)); + mask = DLEVEL_PINS_MASK << sunxi_dlevel_offset(pin); writel((val & ~mask) - | dlevel << sunxi_dlevel_offset(g->pin), - pctl->membase + sunxi_dlevel_reg(g->pin)); + | dlevel << sunxi_dlevel_offset(pin), + pctl->membase + sunxi_dlevel_reg(pin)); break; case PIN_CONFIG_BIAS_PULL_UP: - val = readl(pctl->membase + sunxi_pull_reg(g->pin)); - mask = PULL_PINS_MASK << sunxi_pull_offset(g->pin); - writel((val & ~mask) | 1 << sunxi_pull_offset(g->pin), - pctl->membase + sunxi_pull_reg(g->pin)); + val = readl(pctl->membase + sunxi_pull_reg(pin)); + mask = PULL_PINS_MASK << sunxi_pull_offset(pin); + writel((val & ~mask) | 1 << sunxi_pull_offset(pin), + pctl->membase + sunxi_pull_reg(pin)); break; case PIN_CONFIG_BIAS_PULL_DOWN: - val = readl(pctl->membase + sunxi_pull_reg(g->pin)); - mask = PULL_PINS_MASK << sunxi_pull_offset(g->pin); - writel((val & ~mask) | 2 << sunxi_pull_offset(g->pin), - pctl->membase + sunxi_pull_reg(g->pin)); + val = readl(pctl->membase + sunxi_pull_reg(pin)); + mask = PULL_PINS_MASK << sunxi_pull_offset(pin); + writel((val & ~mask) | 2 << sunxi_pull_offset(pin), + pctl->membase + sunxi_pull_reg(pin)); break; default: break; @@ -376,6 +377,7 @@ static void sunxi_pmx_set(struct pinctrl_dev *pctldev, spin_lock_irqsave(&pctl->lock, flags); + pin -= pctl->desc->pin_base; val = readl(pctl->membase + sunxi_mux_reg(pin)); mask = MUX_PINS_MASK << sunxi_mux_offset(pin); writel((val & ~mask) | config << sunxi_mux_offset(pin), |