From: Kamel Bouhara <kamel.bouhara@bootlin.com> To: William Breathitt Gray <vilhelm.gray@gmail.com> Cc: jic23@kernel.org, robh+dt@kernel.org, alexandre.belloni@bootlin.com, linux-arm-kernel@lists.infradead.org, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] counter: microchip-tcb-capture: Fix CMR value check Date: Sun, 15 Nov 2020 16:26:17 +0100 [thread overview] Message-ID: <20201115152617.GB2233@kb-xps> (raw) In-Reply-To: <20201114232805.253108-1-vilhelm.gray@gmail.com> On Sat, Nov 14, 2020 at 06:28:05PM -0500, William Breathitt Gray wrote: > The ATMEL_TC_ETRGEDG_* defines are not masks but rather possible values > for CMR. This patch fixes the action_get() callback to properly check > for these values rather than mask them. > > Fixes: 106b104137fd ("counter: Add microchip TCB capture counter") > Cc: Kamel Bouhara <kamel.bouhara@bootlin.com> > Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> > Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> > --- Acked-by: Kamel Bouhara <kamel.bouhara@bootlin.com> > drivers/counter/microchip-tcb-capture.c | 16 ++++++++++------ > 1 file changed, 10 insertions(+), 6 deletions(-) > > diff --git a/drivers/counter/microchip-tcb-capture.c b/drivers/counter/microchip-tcb-capture.c > index 039c54a78aa5..710acc0a3704 100644 > --- a/drivers/counter/microchip-tcb-capture.c > +++ b/drivers/counter/microchip-tcb-capture.c > @@ -183,16 +183,20 @@ static int mchp_tc_count_action_get(struct counter_device *counter, > > regmap_read(priv->regmap, ATMEL_TC_REG(priv->channel[0], CMR), &cmr); > > - *action = MCHP_TC_SYNAPSE_ACTION_NONE; > - > - if (cmr & ATMEL_TC_ETRGEDG_NONE) > + switch (cmr & ATMEL_TC_ETRGEDG) { > + default: > *action = MCHP_TC_SYNAPSE_ACTION_NONE; > - else if (cmr & ATMEL_TC_ETRGEDG_RISING) > + break; > + case ATMEL_TC_ETRGEDG_RISING: > *action = MCHP_TC_SYNAPSE_ACTION_RISING_EDGE; > - else if (cmr & ATMEL_TC_ETRGEDG_FALLING) > + break; > + case ATMEL_TC_ETRGEDG_FALLING: > *action = MCHP_TC_SYNAPSE_ACTION_FALLING_EDGE; > - else if (cmr & ATMEL_TC_ETRGEDG_BOTH) > + break; > + case ATMEL_TC_ETRGEDG_BOTH: > *action = MCHP_TC_SYNAPSE_ACTION_BOTH_EDGE; > + break; > + } > > return 0; > } > -- > 2.29.2 > -- Kamel Bouhara, Bootlin Embedded Linux and kernel engineering https://bootlin.com
WARNING: multiple messages have this Message-ID (diff)
From: Kamel Bouhara <kamel.bouhara@bootlin.com> To: William Breathitt Gray <vilhelm.gray@gmail.com> Cc: alexandre.belloni@bootlin.com, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, robh+dt@kernel.org, jic23@kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v2] counter: microchip-tcb-capture: Fix CMR value check Date: Sun, 15 Nov 2020 16:26:17 +0100 [thread overview] Message-ID: <20201115152617.GB2233@kb-xps> (raw) In-Reply-To: <20201114232805.253108-1-vilhelm.gray@gmail.com> On Sat, Nov 14, 2020 at 06:28:05PM -0500, William Breathitt Gray wrote: > The ATMEL_TC_ETRGEDG_* defines are not masks but rather possible values > for CMR. This patch fixes the action_get() callback to properly check > for these values rather than mask them. > > Fixes: 106b104137fd ("counter: Add microchip TCB capture counter") > Cc: Kamel Bouhara <kamel.bouhara@bootlin.com> > Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> > Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> > --- Acked-by: Kamel Bouhara <kamel.bouhara@bootlin.com> > drivers/counter/microchip-tcb-capture.c | 16 ++++++++++------ > 1 file changed, 10 insertions(+), 6 deletions(-) > > diff --git a/drivers/counter/microchip-tcb-capture.c b/drivers/counter/microchip-tcb-capture.c > index 039c54a78aa5..710acc0a3704 100644 > --- a/drivers/counter/microchip-tcb-capture.c > +++ b/drivers/counter/microchip-tcb-capture.c > @@ -183,16 +183,20 @@ static int mchp_tc_count_action_get(struct counter_device *counter, > > regmap_read(priv->regmap, ATMEL_TC_REG(priv->channel[0], CMR), &cmr); > > - *action = MCHP_TC_SYNAPSE_ACTION_NONE; > - > - if (cmr & ATMEL_TC_ETRGEDG_NONE) > + switch (cmr & ATMEL_TC_ETRGEDG) { > + default: > *action = MCHP_TC_SYNAPSE_ACTION_NONE; > - else if (cmr & ATMEL_TC_ETRGEDG_RISING) > + break; > + case ATMEL_TC_ETRGEDG_RISING: > *action = MCHP_TC_SYNAPSE_ACTION_RISING_EDGE; > - else if (cmr & ATMEL_TC_ETRGEDG_FALLING) > + break; > + case ATMEL_TC_ETRGEDG_FALLING: > *action = MCHP_TC_SYNAPSE_ACTION_FALLING_EDGE; > - else if (cmr & ATMEL_TC_ETRGEDG_BOTH) > + break; > + case ATMEL_TC_ETRGEDG_BOTH: > *action = MCHP_TC_SYNAPSE_ACTION_BOTH_EDGE; > + break; > + } > > return 0; > } > -- > 2.29.2 > -- Kamel Bouhara, Bootlin Embedded Linux and kernel engineering https://bootlin.com _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-11-15 15:26 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-11-14 23:28 [PATCH v2] counter: microchip-tcb-capture: Fix CMR value check William Breathitt Gray 2020-11-14 23:28 ` William Breathitt Gray 2020-11-15 15:26 ` Kamel Bouhara [this message] 2020-11-15 15:26 ` Kamel Bouhara 2020-11-21 16:31 ` Jonathan Cameron 2020-11-21 16:31 ` Jonathan Cameron
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