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| author | Russell King <linux@armlinux.org.uk> | 2020-05-21 09:57:27 +0100 |
|---|---|---|
| committer | Petr Štetiar <ynezz@true.cz> | 2020-05-21 12:55:31 +0200 |
| commit | 714199ec3461b2b5bac9796d4f5ee79f56d2eb00 (patch) | |
| tree | 9d02420e261024062d56df1b12776d9594c38658 /target/linux/generic/backport-5.4/818-v5.8-i2c-pxa-remove-some-unnecessary-debug.patch | |
| parent | 72a1d5c3acd5b0bec46612f94bb8a82fe4d56179 (diff) | |
| download | upstream-714199ec3461b2b5bac9796d4f5ee79f56d2eb00.tar.gz upstream-714199ec3461b2b5bac9796d4f5ee79f56d2eb00.tar.bz2 upstream-714199ec3461b2b5bac9796d4f5ee79f56d2eb00.zip | |
kernel: backport v5.8 i2c-pxa updates
Add i2c-pxa updates queued for v5.8, which add bus recovery to this
driver; this is needed for the uDPU platform.
Signed-off-by: Russell King <linux@armlinux.org.uk>
Diffstat (limited to 'target/linux/generic/backport-5.4/818-v5.8-i2c-pxa-remove-some-unnecessary-debug.patch')
| -rw-r--r-- | target/linux/generic/backport-5.4/818-v5.8-i2c-pxa-remove-some-unnecessary-debug.patch | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.4/818-v5.8-i2c-pxa-remove-some-unnecessary-debug.patch b/target/linux/generic/backport-5.4/818-v5.8-i2c-pxa-remove-some-unnecessary-debug.patch new file mode 100644 index 0000000000..4676d7721f --- /dev/null +++ b/target/linux/generic/backport-5.4/818-v5.8-i2c-pxa-remove-some-unnecessary-debug.patch @@ -0,0 +1,39 @@ +From: Russell King <rmk+kernel@armlinux.org.uk> +Bcc: linux@mail.armlinux.org.uk +Subject: [PATCH 4/7] i2c: pxa: remove some unnecessary debug +MIME-Version: 1.0 +Content-Disposition: inline +Content-Transfer-Encoding: 8bit +Content-Type: text/plain; charset="utf-8" + +Remove unnecessary show_state() in the loop inside +i2c_pxa_pio_set_master(), which can be unnecessarily verbose. + +Remove the i2c_pxa_scream_blue_murder() in i2c_pxa_pio_xfer(), which +will trigger if we are probing the I2C bus and a slave does not +respond; this is a normal event, and not something to report. + +Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> +--- + drivers/i2c/busses/i2c-pxa.c | 4 +--- + 1 file changed, 1 insertion(+), 3 deletions(-) + +diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c +index 0becab239476..db739cce93ac 100644 +--- a/drivers/i2c/busses/i2c-pxa.c ++++ b/drivers/i2c/busses/i2c-pxa.c +@@ -1161,10 +1161,8 @@ static int i2c_pxa_pio_set_master(struct pxa_i2c *i2c) + /* + * Wait for the bus to become free. + */ +- while (timeout-- && readl(_ISR(i2c)) & (ISR_IBB | ISR_UB)) { ++ while (timeout-- && readl(_ISR(i2c)) & (ISR_IBB | ISR_UB)) + udelay(1000); +- show_state(i2c); +- } + + if (timeout < 0) { + show_state(i2c); +-- +2.20.1 + |