From: Sathish Kumar Balasubramaniam <[email protected]>
This patch fixes a bug in the list of peripheral functions for the IPSR5 pin
mux configuration of the PFC (Pin Function Controller) of the Renesas R-Car H2
SoC (R8A7790). There should be exactly 8 values listed for the IP5_23_21
peripheral function which is using 3 bits. But there are 9 values present in
the list.
This bug unexpectedly increases the internal position variable by 1 which is
used by the PFC framework to identify the peripheral function. Due to this bug,
peripheral function configuration from IP5_20_18 to IP5_2_0 may not work
properly.
This issue can be easily reproduced by setting the FN_I2C1_SDA ( IP5_9_6 [4] )
which has the function value of 9 but the actual function value is set as 10
due to this bug.
-------------------------------------------------------------------------------
--- linux-3.14.6/drivers/pinctrl/sh-pfc/pfc-r8a7790.c.original 2014-06-08
22:03:44.681669692 +0530
+++ linux-3.14.6/drivers/pinctrl/sh-pfc/pfc-r8a7790.c 2014-06-08
22:02:10.361673511 +0530
@@ -4624,7 +4624,7 @@ static const struct pinmux_cfg_reg pinmu
/* IP5_23_21 [3] */
FN_WE1_N, FN_IERX, FN_CAN1_RX, FN_VI1_G4,
FN_VI1_G4_B, FN_VI2_R6, FN_SCIFA0_CTS_N_B,
- FN_IERX_C, 0,
+ FN_IERX_C,
/* IP5_20_18 [3] */
FN_WE0_N, FN_IECLK, FN_CAN_CLK,
FN_VI2_VSYNC_N, FN_SCIFA0_TXD_B, FN_VI2_VSYNC_N_B, 0, 0,
Signed-off-by: Sathish Kumar Balasubramaniam <[email protected]>
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