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authorSean Paul <seanpaul@chromium.org>2014-09-09 15:58:45 -0400
committerLinus Walleij <linus.walleij@linaro.org>2014-09-19 12:28:54 -0500
commit3ccc11f6b82c34646c8a4233278251d9e9e99390 (patch)
tree7c6e506fac1b64654289ad3b59dc4ea940b8004a /drivers/pinctrl/pinctrl-tegra124.c
parent02b837ffe033ed3b50787e0f3e4103ea5a34636b (diff)
pinctrl: tegra: Add MIPI pad control
This patch adds MIPI CSI/DSIB pad control mux register from the APB misc block to tegra pinctrl. Without writing to this register, the dsib pads are muxed as csi, and cannot be used. The register is not yet documented in the TRM, here is the description: 70000820: APB_MISC_GP_MIPI_PAD_CTRL_0 [31:02] RESERVED [01:01] DSIB_MODE [CSI=0,DSIB=1] [00:00] RESERVED Signed-off-by: Sean Paul <seanpaul@chromium.org> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/pinctrl-tegra124.c')
-rw-r--r--drivers/pinctrl/pinctrl-tegra124.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-tegra124.c b/drivers/pinctrl/pinctrl-tegra124.c
index cb3e596cade1..2f9b75c14967 100644
--- a/drivers/pinctrl/pinctrl-tegra124.c
+++ b/drivers/pinctrl/pinctrl-tegra124.c
@@ -224,6 +224,16 @@
#define TEGRA_PIN_OWR _PIN(5)
#define TEGRA_PIN_CLK_32K_IN _PIN(6)
#define TEGRA_PIN_JTAG_RTCK _PIN(7)
+#define TEGRA_PIN_DSI_B_CLK_P _PIN(8)
+#define TEGRA_PIN_DSI_B_CLK_N _PIN(9)
+#define TEGRA_PIN_DSI_B_D0_P _PIN(10)
+#define TEGRA_PIN_DSI_B_D0_N _PIN(11)
+#define TEGRA_PIN_DSI_B_D1_P _PIN(12)
+#define TEGRA_PIN_DSI_B_D1_N _PIN(13)
+#define TEGRA_PIN_DSI_B_D2_P _PIN(14)
+#define TEGRA_PIN_DSI_B_D2_N _PIN(15)
+#define TEGRA_PIN_DSI_B_D3_P _PIN(16)
+#define TEGRA_PIN_DSI_B_D3_N _PIN(17)
static const struct pinctrl_pin_desc tegra124_pins[] = {
PINCTRL_PIN(TEGRA_PIN_CLK_32K_OUT_PA0, "CLK_32K_OUT PA0"),
@@ -417,6 +427,16 @@ static const struct pinctrl_pin_desc tegra124_pins[] = {
PINCTRL_PIN(TEGRA_PIN_OWR, "OWR"),
PINCTRL_PIN(TEGRA_PIN_CLK_32K_IN, "CLK_32K_IN"),
PINCTRL_PIN(TEGRA_PIN_JTAG_RTCK, "JTAG_RTCK"),
+ PINCTRL_PIN(TEGRA_PIN_DSI_B_CLK_P, "DSI_B_CLK_P"),
+ PINCTRL_PIN(TEGRA_PIN_DSI_B_CLK_N, "DSI_B_CLK_N"),
+ PINCTRL_PIN(TEGRA_PIN_DSI_B_D0_P, "DSI_B_D0_P"),
+ PINCTRL_PIN(TEGRA_PIN_DSI_B_D0_N, "DSI_B_D0_N"),
+ PINCTRL_PIN(TEGRA_PIN_DSI_B_D1_P, "DSI_B_D1_P"),
+ PINCTRL_PIN(TEGRA_PIN_DSI_B_D1_N, "DSI_B_D1_N"),
+ PINCTRL_PIN(TEGRA_PIN_DSI_B_D2_P, "DSI_B_D2_P"),
+ PINCTRL_PIN(TEGRA_PIN_DSI_B_D2_N, "DSI_B_D2_N"),
+ PINCTRL_PIN(TEGRA_PIN_DSI_B_D3_P, "DSI_B_D3_P"),
+ PINCTRL_PIN(TEGRA_PIN_DSI_B_D3_N, "DSI_B_D3_N"),
};
static const unsigned clk_32k_out_pa0_pins[] = {
@@ -1495,6 +1515,19 @@ static const unsigned drive_ao4_pins[] = {
TEGRA_PIN_JTAG_RTCK,
};
+static const unsigned mipi_pad_ctrl_dsi_b_pins[] = {
+ TEGRA_PIN_DSI_B_CLK_P,
+ TEGRA_PIN_DSI_B_CLK_N,
+ TEGRA_PIN_DSI_B_D0_P,
+ TEGRA_PIN_DSI_B_D0_N,
+ TEGRA_PIN_DSI_B_D1_P,
+ TEGRA_PIN_DSI_B_D1_N,
+ TEGRA_PIN_DSI_B_D2_P,
+ TEGRA_PIN_DSI_B_D2_N,
+ TEGRA_PIN_DSI_B_D3_P,
+ TEGRA_PIN_DSI_B_D3_N,
+};
+
enum tegra_mux {
TEGRA_MUX_BLINK,
TEGRA_MUX_CCLA,
@@ -1580,6 +1613,8 @@ enum tegra_mux {
TEGRA_MUX_VI_ALT3,
TEGRA_MUX_VIMCLK2,
TEGRA_MUX_VIMCLK2_ALT,
+ TEGRA_MUX_CSI,
+ TEGRA_MUX_DSI_B,
};
#define FUNCTION(fname) \
@@ -1672,10 +1707,13 @@ static struct tegra_function tegra124_functions[] = {
FUNCTION(vi_alt3),
FUNCTION(vimclk2),
FUNCTION(vimclk2_alt),
+ FUNCTION(csi),
+ FUNCTION(dsi_b),
};
#define DRV_PINGROUP_REG_A 0x868 /* bank 0 */
#define PINGROUP_REG_A 0x3000 /* bank 1 */
+#define MIPI_PAD_CTRL_PINGROUP_REG_A 0x820 /* bank 2 */
#define PINGROUP_REG(r) ((r) - PINGROUP_REG_A)
@@ -1744,6 +1782,32 @@ static struct tegra_function tegra124_functions[] = {
.drvtype_bit = PINGROUP_BIT_##drvtype(6), \
}
+#define MIPI_PAD_CTRL_PINGROUP_REG_Y(r) ((r) - MIPI_PAD_CTRL_PINGROUP_REG_A)
+
+#define MIPI_PAD_CTRL_PINGROUP(pg_name, r, b, f0, f1) \
+ { \
+ .name = "mipi_pad_ctrl_" #pg_name, \
+ .pins = mipi_pad_ctrl_##pg_name##_pins, \
+ .npins = ARRAY_SIZE(mipi_pad_ctrl_##pg_name##_pins), \
+ .funcs = { \
+ TEGRA_MUX_ ## f0, \
+ TEGRA_MUX_ ## f1, \
+ TEGRA_MUX_RSVD3, \
+ TEGRA_MUX_RSVD4, \
+ }, \
+ .mux_reg = MIPI_PAD_CTRL_PINGROUP_REG_Y(r), \
+ .mux_bank = 2, \
+ .mux_bit = b, \
+ .pupd_reg = -1, \
+ .tri_reg = -1, \
+ .einput_bit = -1, \
+ .odrain_bit = -1, \
+ .lock_bit = -1, \
+ .ioreset_bit = -1, \
+ .rcv_sel_bit = -1, \
+ .drv_reg = -1, \
+ }
+
static const struct tegra_pingroup tegra124_groups[] = {
/* pg_name, f0, f1, f2, f3, r, od, ior, rcv_sel */
PINGROUP(ulpi_data0_po1, SPI3, HSI, UARTA, ULPI, 0x3000, N, N, N),
@@ -1979,6 +2043,9 @@ static const struct tegra_pingroup tegra124_groups[] = {
DRV_PINGROUP(hv0, 0x9b4, 2, 3, 4, 12, 5, -1, -1, 28, 2, -1, -1, N),
DRV_PINGROUP(sdio4, 0x9c4, 2, 3, 4, 12, 5, 20, 5, 28, 2, 30, 2, N),
DRV_PINGROUP(ao4, 0x9c8, 2, 3, 4, 12, 7, 20, 7, 28, 2, 30, 2, Y),
+
+ /* pg_name, r b f0, f1 */
+ MIPI_PAD_CTRL_PINGROUP(dsi_b, 0x820, 1, CSI, DSI_B)
};
static const struct tegra_pinctrl_soc_data tegra124_pinctrl = {