On 2020/03/10 Uwe Kleine-König [off-list ref] wrote:
Hello,
On Tue, Mar 10, 2020 at 08:27:41AM +0000, Robin Gong wrote:
quoted
On 2020/03/10 Sascha Hauer [off-list ref] wrote:
quoted
On Tue, Mar 10, 2020 at 07:31:55PM +0800, Robin Gong wrote:
quoted
writel(ctrl, spi_imx->base + MX51_ECSPI_CTRL);
@@ -612,12 +613,14 @@ static int mx51_ecspi_prepare_transfer(struct
spi_imx_data *spi_imx,
static void mx51_setup_wml(struct spi_imx_data *spi_imx) {
+ u32 tx_wml = 0;
+
/*
* Configure the DMA register: setup the watermark
* and enable DMA request.
*/
writel(MX51_ECSPI_DMA_RX_WML(spi_imx->wml - 1) |
- MX51_ECSPI_DMA_TX_WML(spi_imx->wml) |
+ MX51_ECSPI_DMA_TX_WML(tx_wml) |
tx_wml is never assigned any other value than 0. Drop the variable.
That's prepared for 07/13 patch which may assign spi_imx->wml to tx_wml.
Then this belongs into patch 7, right?
Okay, understood your concern. Then I'll drop tx_wml to make it clear.
Best regards
Uwe
--
Pengutronix e.K. | Uwe Kleine-König
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