Re: [PATCH v2 1/3] pinctrl: qcom: Add APQ8084 pinctrl support
From: Bjorn Andersson <hidden>
Date: 2014-08-29 06:01:06
Also in:
linux-arm-kernel, linux-arm-msm, lkml
On Tue 26 Aug 05:45 PDT 2014, Georgi Djakov wrote: Hi Georgi, Sorry for missing this before, but I did a quick walkthrough and unfortunately the gpio configuration needs a few updates.
quoted hunk ↗ jump to hunk
diff --git a/drivers/pinctrl/qcom/pinctrl-apq8084.c b/drivers/pinctrl/qcom/pinctrl-apq8084.c
[...]
+
+#define PINGROUP(id, f1, f2, f3, f4, f5, f6, f7) \
+ { \
+ .name = "gpio" #id, \
+ .pins = gpio##id##_pins, \
+ .npins = ARRAY_SIZE(gpio##id##_pins), \
+ .funcs = (int[]){ \
+ APQ_MUX_gpio, \
+ APQ_MUX_##f1, \
+ APQ_MUX_##f2, \
+ APQ_MUX_##f3, \
+ APQ_MUX_##f4, \
+ APQ_MUX_##f5, \
+ APQ_MUX_##f6, \
+ APQ_MUX_##f7 \
+ }, \
+ .nfuncs = 8, \
+ .ctl_reg = 0x1000 + 0x10 * id, \
+ .io_reg = 0x1004 + 0x10 * id, \
+ .intr_cfg_reg = 0x1008 + 0x10 * id, \
+ .intr_status_reg = 0x100c + 0x10 * id, \
+ .intr_target_reg = 0x400 + 0x4 * id, \The routing of the interrupt is specified in TLMM_GPIO_INTR_CFG(n), i.e: 0x1008 + 0x10 * n Apparently the HW guys wanted to give us more work, so in 8084 they use 3 to specify routing the interrupts to KPSS, instead of the previous 4. So the static define of INTR_TARGET_PROC_APPS is no longer adequate. My suggestion is that you create an additional patch and add to your series that moves todays hardcoded 4 into the soc_data for the existing platforms (or include it in this struct).
+ .mux_bit = 2, \ + .pull_bit = 0, \ + .drv_bit = 6, \ + .oe_bit = 9, \ + .in_bit = 0, \ + .out_bit = 1, \ + .intr_enable_bit = 0, \ + .intr_status_bit = 0, \ + .intr_ack_high = 1, \
With the 8084 TLMM chip you ack the interrupt status by clearing this bit, so intr_ack_high should be 0.
+ .intr_target_bit = 0, \
Target bit is 5.
+ .intr_raw_status_bit = 3, \
Raw interrupt status bit is 4.
+ .intr_polarity_bit = 1, \ + .intr_detection_bit = 2, \ + .intr_detection_width = 1, \
You can do level, raise, fall and both edge detection with 8084, so the width of his part is 2.
+ } +
Regards, Bjorn