diff options
| author | Samuel Holland <samuel@sholland.org> | 2022-07-13 05:52:33 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2022-07-18 12:39:33 +0300 |
| commit | 0569af4811549fe368a53414f37ab53fecbbaf23 (patch) | |
| tree | 82cf1a5c0467796ae8c574a6e026e2848ee84725 /drivers/pinctrl/sunxi/pinctrl-sunxi.c | |
| parent | 622b681ef9d9e7d636108cda4e45a2a7695ebe92 (diff) | |
| download | linux-0569af4811549fe368a53414f37ab53fecbbaf23.tar.xz | |
pinctrl: sunxi: Add driver for Allwinner D1
This SoC contains a pinctrl with a new register layout. Use the variant
parameter to set the right register offsets. This pinctrl also increases
the number of functions per pin from 8 to 16, taking advantage of all 4
bits in the mux config field (so far, only functions 0-8 and 14-15 are
used). This increases the maximum possible number of functions.
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Link: https://lore.kernel.org/r/20220713025233.27248-7-samuel@sholland.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/sunxi/pinctrl-sunxi.c')
| -rw-r--r-- | drivers/pinctrl/sunxi/pinctrl-sunxi.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.c b/drivers/pinctrl/sunxi/pinctrl-sunxi.c index ec7daaa5666b..350044d4c1b5 100644 --- a/drivers/pinctrl/sunxi/pinctrl-sunxi.c +++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.c @@ -1297,11 +1297,11 @@ static int sunxi_pinctrl_build_state(struct platform_device *pdev) /* * Find an upper bound for the maximum number of functions: in - * the worst case we have gpio_in, gpio_out, irq and up to four + * the worst case we have gpio_in, gpio_out, irq and up to seven * special functions per pin, plus one entry for the sentinel. * We'll reallocate that later anyway. */ - pctl->functions = kcalloc(4 * pctl->ngroups + 4, + pctl->functions = kcalloc(7 * pctl->ngroups + 4, sizeof(*pctl->functions), GFP_KERNEL); if (!pctl->functions) @@ -1494,9 +1494,15 @@ int sunxi_pinctrl_init_with_variant(struct platform_device *pdev, pctl->dev = &pdev->dev; pctl->desc = desc; pctl->variant = variant; - pctl->bank_mem_size = BANK_MEM_SIZE; - pctl->pull_regs_offset = PULL_REGS_OFFSET; - pctl->dlevel_field_width = DLEVEL_FIELD_WIDTH; + if (pctl->variant >= PINCTRL_SUN20I_D1) { + pctl->bank_mem_size = D1_BANK_MEM_SIZE; + pctl->pull_regs_offset = D1_PULL_REGS_OFFSET; + pctl->dlevel_field_width = D1_DLEVEL_FIELD_WIDTH; + } else { + pctl->bank_mem_size = BANK_MEM_SIZE; + pctl->pull_regs_offset = PULL_REGS_OFFSET; + pctl->dlevel_field_width = DLEVEL_FIELD_WIDTH; + } pctl->irq_array = devm_kcalloc(&pdev->dev, IRQ_PER_BANK * pctl->desc->irq_banks, |