From: Lee Jones <lee.jones@linaro.org> To: alokc@codeaurora.org, agross@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, bjorn.andersson@linaro.org, linux-i2c@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Lee Jones <lee.jones@linaro.org> Subject: [PATCH 1/2] i2c: qcom-geni: Provide an option to select FIFO processing Date: Wed, 4 Sep 2019 12:36:12 +0100 [thread overview] Message-ID: <20190904113613.14997-1-lee.jones@linaro.org> (raw) Signed-off-by: Lee Jones <lee.jones@linaro.org> --- drivers/i2c/busses/i2c-qcom-geni.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c index a89bfce5388e..dfdbce067827 100644 --- a/drivers/i2c/busses/i2c-qcom-geni.c +++ b/drivers/i2c/busses/i2c-qcom-geni.c @@ -353,13 +353,16 @@ static void geni_i2c_tx_fsm_rst(struct geni_i2c_dev *gi2c) static int geni_i2c_rx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg, u32 m_param) { + struct device_node *np = gi2c->se.dev->of_node; dma_addr_t rx_dma; unsigned long time_left; - void *dma_buf; + void *dma_buf = NULL; struct geni_se *se = &gi2c->se; size_t len = msg->len; - dma_buf = i2c_get_dma_safe_msg_buf(msg, 32); + if (!of_property_read_bool(np, "qcom,geni-se-fifo")) + dma_buf = i2c_get_dma_safe_msg_buf(msg, 32); + if (dma_buf) geni_se_select_mode(se, GENI_SE_DMA); else @@ -392,13 +395,16 @@ static int geni_i2c_rx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg, static int geni_i2c_tx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg, u32 m_param) { + struct device_node *np = gi2c->se.dev->of_node; dma_addr_t tx_dma; unsigned long time_left; - void *dma_buf; + void *dma_buf = NULL; struct geni_se *se = &gi2c->se; size_t len = msg->len; - dma_buf = i2c_get_dma_safe_msg_buf(msg, 32); + if (!of_property_read_bool(np, "qcom,geni-se-fifo")) + dma_buf = i2c_get_dma_safe_msg_buf(msg, 32); + if (dma_buf) geni_se_select_mode(se, GENI_SE_DMA); else -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: Lee Jones <lee.jones@linaro.org> To: alokc@codeaurora.org, agross@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, bjorn.andersson@linaro.org, linux-i2c@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org Cc: Lee Jones <lee.jones@linaro.org>, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 1/2] i2c: qcom-geni: Provide an option to select FIFO processing Date: Wed, 4 Sep 2019 12:36:12 +0100 [thread overview] Message-ID: <20190904113613.14997-1-lee.jones@linaro.org> (raw) Signed-off-by: Lee Jones <lee.jones@linaro.org> --- drivers/i2c/busses/i2c-qcom-geni.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c index a89bfce5388e..dfdbce067827 100644 --- a/drivers/i2c/busses/i2c-qcom-geni.c +++ b/drivers/i2c/busses/i2c-qcom-geni.c @@ -353,13 +353,16 @@ static void geni_i2c_tx_fsm_rst(struct geni_i2c_dev *gi2c) static int geni_i2c_rx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg, u32 m_param) { + struct device_node *np = gi2c->se.dev->of_node; dma_addr_t rx_dma; unsigned long time_left; - void *dma_buf; + void *dma_buf = NULL; struct geni_se *se = &gi2c->se; size_t len = msg->len; - dma_buf = i2c_get_dma_safe_msg_buf(msg, 32); + if (!of_property_read_bool(np, "qcom,geni-se-fifo")) + dma_buf = i2c_get_dma_safe_msg_buf(msg, 32); + if (dma_buf) geni_se_select_mode(se, GENI_SE_DMA); else @@ -392,13 +395,16 @@ static int geni_i2c_rx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg, static int geni_i2c_tx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg, u32 m_param) { + struct device_node *np = gi2c->se.dev->of_node; dma_addr_t tx_dma; unsigned long time_left; - void *dma_buf; + void *dma_buf = NULL; struct geni_se *se = &gi2c->se; size_t len = msg->len; - dma_buf = i2c_get_dma_safe_msg_buf(msg, 32); + if (!of_property_read_bool(np, "qcom,geni-se-fifo")) + dma_buf = i2c_get_dma_safe_msg_buf(msg, 32); + if (dma_buf) geni_se_select_mode(se, GENI_SE_DMA); else -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2019-09-04 11:36 UTC|newest] Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-09-04 11:36 Lee Jones [this message] 2019-09-04 11:36 ` [PATCH 1/2] i2c: qcom-geni: Provide an option to select FIFO processing Lee Jones 2019-09-04 11:36 ` [PATCH 2/2] dt-bindings: soc: qcom: Provide option to select FIFO mode Lee Jones 2019-09-04 11:36 ` Lee Jones 2019-09-04 11:58 ` Vinod Koul 2019-09-04 11:58 ` Vinod Koul 2019-09-04 11:56 ` [PATCH 1/2] i2c: qcom-geni: Provide an option to select FIFO processing Vinod Koul 2019-09-04 11:56 ` Vinod Koul 2019-09-04 12:18 ` Lee Jones 2019-09-04 12:18 ` Lee Jones 2019-09-04 11:58 ` Vinod Koul 2019-09-04 11:58 ` Vinod Koul 2019-09-04 20:35 ` Bjorn Andersson 2019-09-04 20:35 ` Bjorn Andersson 2019-09-04 21:23 ` Wolfram Sang 2019-09-04 21:23 ` Wolfram Sang 2019-09-05 7:11 ` Lee Jones 2019-09-05 7:11 ` Lee Jones 2019-09-05 9:16 ` Wolfram Sang 2019-09-05 9:16 ` Wolfram Sang 2019-09-05 9:34 ` Lee Jones 2019-09-05 9:34 ` Lee Jones 2019-09-05 13:37 ` Wolfram Sang 2019-09-05 13:37 ` Wolfram Sang
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