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| author | Andrew Jeffery <andrew@aj.id.au> | 2016-12-20 08:35:48 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2016-12-27 23:15:32 +0100 |
| commit | 7d29ed88acbbf00e2056634bd4c0172d55d2568c (patch) | |
| tree | 8a12e5e5e3d359d60acf6a04ea00f7be9b747686 /drivers/pinctrl/aspeed/pinctrl-aspeed-g4.c | |
| parent | pinctrl: aspeed: dt: Fix compatibles for the System Control Unit (diff) | |
| download | linux-7d29ed88acbbf00e2056634bd4c0172d55d2568c.tar.xz linux-7d29ed88acbbf00e2056634bd4c0172d55d2568c.zip | |
pinctrl: aspeed: Read and write bits in LPC and GFX controllers
The System Control Unit IP block in the Aspeed SoCs is typically where
the pinmux configuration is found, but not always. A number of pins
depend on state in one of LPC Host Control (LHC) or SoC Display
Controller (GFX) IP blocks, so the Aspeed pinmux drivers should have the
means to adjust these as necessary.
We use syscon to cast a regmap over the GFX and LPC blocks, which is
used as an arbitration layer between the relevant driver and the pinctrl
subsystem. The regmaps are then exposed to the SoC-specific pinctrl
drivers by phandles in the devicetree, and are selected during a mux
request by querying a new 'ip' member in struct aspeed_sig_desc.
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/aspeed/pinctrl-aspeed-g4.c')
| -rw-r--r-- | drivers/pinctrl/aspeed/pinctrl-aspeed-g4.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/pinctrl/aspeed/pinctrl-aspeed-g4.c b/drivers/pinctrl/aspeed/pinctrl-aspeed-g4.c index a21b071ff290..558bd102416c 100644 --- a/drivers/pinctrl/aspeed/pinctrl-aspeed-g4.c +++ b/drivers/pinctrl/aspeed/pinctrl-aspeed-g4.c @@ -292,7 +292,7 @@ SSSF_PIN_DECL(U18, GPIOG7, FLWP, SIG_DESC_SET(SCU84, 7)); #define UART6_DESC SIG_DESC_SET(SCU90, 7) #define ROM16_DESC SIG_DESC_SET(SCU90, 6) #define FLASH_WIDE SIG_DESC_SET(HW_STRAP1, 4) -#define BOOT_SRC_NOR { HW_STRAP1, GENMASK(1, 0), 0, 0 } +#define BOOT_SRC_NOR { ASPEED_IP_SCU, HW_STRAP1, GENMASK(1, 0), 0, 0 } #define A8 56 SIG_EXPR_DECL(ROMD8, ROM16, ROM16_DESC); @@ -418,9 +418,9 @@ FUNC_GROUP_DECL(I2C8, G5, F3); #define U1 88 SSSF_PIN_DECL(U1, GPIOL0, NCTS1, SIG_DESC_SET(SCU84, 16)); -#define VPI18_DESC { SCU90, GENMASK(5, 4), 1, 0 } -#define VPI24_DESC { SCU90, GENMASK(5, 4), 2, 0 } -#define VPI30_DESC { SCU90, GENMASK(5, 4), 3, 0 } +#define VPI18_DESC { ASPEED_IP_SCU, SCU90, GENMASK(5, 4), 1, 0 } +#define VPI24_DESC { ASPEED_IP_SCU, SCU90, GENMASK(5, 4), 2, 0 } +#define VPI30_DESC { ASPEED_IP_SCU, SCU90, GENMASK(5, 4), 3, 0 } #define T5 89 #define T5_DESC SIG_DESC_SET(SCU84, 17) @@ -641,11 +641,11 @@ SSSF_PIN_DECL(Y22, GPIOR2, ROMCS3, SIG_DESC_SET(SCU88, 26)); #define U19 139 SSSF_PIN_DECL(U19, GPIOR3, ROMCS4, SIG_DESC_SET(SCU88, 27)); -#define VPOOFF0_DESC { SCU94, GENMASK(1, 0), 0, 0 } -#define VPO12_DESC { SCU94, GENMASK(1, 0), 1, 0 } -#define VPO24_DESC { SCU94, GENMASK(1, 0), 2, 0 } -#define VPOOFF1_DESC { SCU94, GENMASK(1, 0), 3, 0 } -#define VPO_OFF_12 { SCU94, 0x2, 0, 0 } +#define VPOOFF0_DESC { ASPEED_IP_SCU, SCU94, GENMASK(1, 0), 0, 0 } +#define VPO12_DESC { ASPEED_IP_SCU, SCU94, GENMASK(1, 0), 1, 0 } +#define VPO24_DESC { ASPEED_IP_SCU, SCU94, GENMASK(1, 0), 2, 0 } +#define VPOOFF1_DESC { ASPEED_IP_SCU, SCU94, GENMASK(1, 0), 3, 0 } +#define VPO_OFF_12 { ASPEED_IP_SCU, SCU94, 0x2, 0, 0 } #define VPO_24_OFF SIG_DESC_SET(SCU94, 1) #define V21 140 |