diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2016-03-16 20:44:51 +0100 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2016-03-23 22:04:13 +0100 |
| commit | 730d2f3a41c5ccae71b5008fffdf697d143be68c (patch) | |
| tree | b1495e883ff4b624e9c04e17674ad49594d785c9 | |
| parent | 80e5f83c0fc4bf42110cc55ce671ad7ddc7b08a4 (diff) | |
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>
| -rw-r--r-- | arch/arm/cpu/armv7/sunxi/clock_sun6i.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/arch/arm/cpu/armv7/sunxi/clock_sun6i.c b/arch/arm/cpu/armv7/sunxi/clock_sun6i.c index 700b605ab3..4e1e1a4090 100644 --- 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; } |