Commit Graph

5 Commits

Author SHA1 Message Date
Kuninori Morimoto 63b6d7e762 pinctrl: sh-pfc: Convert to SPDX identifiers
This patch updates license to use SPDX-License-Identifier
instead of verbose license text.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2018-09-11 12:25:32 +02:00
Niklas Söderlund 550b6f7e8c pinctrl: sh-pfc: r8a77970: remove SH_PFC_PIN_CFG_DRIVE_STRENGTH flag
The datasheet does not document any registers to control drive strength,
and no drive strength registers are for this reason described for this
SoC. The flags indicating that drive strength can be controlled are
however set for some pins in the driver.

This leads to a NULL pointer dereference when the sh-pfc core tries to
access the struct describing the drive strength registers, for example
when reading the sysfs file pinconf-pins.

Fix this by removing the SH_PFC_PIN_CFG_DRIVE_STRENGTH from all pins.

Fixes: b92ac66a18 ("pinctrl: sh-pfc: Add R8A77970 PFC support")
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-07-14 12:47:04 +02:00
Sergei Shtylyov f9931a4d87 pinctrl: sh-pfc: r8a77970: Fix pin I/O voltage control support
I've included the pin I/O voltage control into the R8A77970 PFC driver but
it was incomplete because:
- SH_PFC_PIN_CFG_IO_VOLTAGE pin flags weren't set properly;
- sh_pfc_soc_info::ioctrl_regs wasn't set at all...

Fixes: b92ac66a18 ("pinctrl: sh-pfc: Add R8A77970 PFC support")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-05-16 13:31:42 +02:00
Sergei Shtylyov b3cbd8a567 pinctrl: sh-pfc: r8a77970: Add EtherAVB pin groups
Add the EtherAVB pin groups to the R8A77970 PFC driver.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2018-03-14 14:39:52 +01:00
Sergei Shtylyov b92ac66a18 pinctrl: sh-pfc: Add R8A77970 PFC support
Add the PFC support for the R8A77970 SoC including pin groups for some
on-chip devices such as CAN-FD, [H]SCIF, I2C, INTC-EX, MMC, MSIOF, PWM,
VIN...

Based on the original (and large) patch by Daisuke Matsushita
<daisuke.matsushita.ns@hitachi.com>.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Rob Herring <robh@kernel.org>
[geert: Drop EtherAVB for now]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-12-05 14:14:39 +01:00