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- From 730d2f3a41c5ccae71b5008fffdf697d143be68c Mon Sep 17 00:00:00 2001
- From: Hans de Goede <hdegoede@redhat.com>
- Date: Wed, 16 Mar 2016 20:44:51 +0100
- Subject: [PATCH] sunxi: Fix clock_twi_onoff for sun6i
- The clock_sun6i.c implementation was not deasserting the reset for
- the regular i2c controllers, this commit fixes this.
- Signed-off-by: Hans de Goede <hdegoede@redhat.com>
- Acked-by: Ian Campbell <ijc@hellion.org.uk>
- ---
- arch/arm/cpu/armv7/sunxi/clock_sun6i.c | 11 ++++++++---
- 1 file changed, 8 insertions(+), 3 deletions(-)
- --- a/arch/arm/cpu/armv7/sunxi/clock_sun6i.c
- +++ b/arch/arm/cpu/armv7/sunxi/clock_sun6i.c
- @@ -100,13 +100,18 @@ int clock_twi_onoff(int port, int state)
- return 0;
- }
-
- - /* set the apb clock gate for twi */
- - if (state)
- + /* set the apb clock gate and reset for twi */
- + if (state) {
- setbits_le32(&ccm->apb2_gate,
- CLK_GATE_OPEN << (APB2_GATE_TWI_SHIFT+port));
- - else
- + setbits_le32(&ccm->apb2_reset_cfg,
- + 1 << (APB2_RESET_TWI_SHIFT + port));
- + } else {
- + clrbits_le32(&ccm->apb2_reset_cfg,
- + 1 << (APB2_RESET_TWI_SHIFT + port));
- clrbits_le32(&ccm->apb2_gate,
- CLK_GATE_OPEN << (APB2_GATE_TWI_SHIFT+port));
- + }
-
- return 0;
- }
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