Commit 5d85ea2c authored by Vijaya Krishna Nivarthi's avatar Vijaya Krishna Nivarthi Committed by Bjorn Andersson
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soc: qcom: geni-se: Do not bother about enable/disable of interrupts in secondary sequencer 



The select_fifo/dma_mode() functions in geni driver enable/disable
interrupts (secondary included) conditionally for non-uart modes, while
uart is supposed to manage this internally.
However, only uart uses secondary IRQs while spi, i2c do not care about
these at all making their enablement (or disablement) totally unnecessary
for these protos.
Similarly, select_gpi_mode() also does disable s_irq and its useless again.

Drop enabling/disabling secondary IRQs.
This doesn't solve any observed problem but only gets rid of code pieces
that are not required.

Signed-off-by: default avatarVijaya Krishna Nivarthi <quic_vnivarth@quicinc.com>
Reviewed-by: default avatarDouglas Anderson <dianders@chromium.org>
Signed-off-by: default avatarBjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/1686742087-30731-1-git-send-email-quic_vnivarth@quicinc.com
parent 8d66f7a0

drivers/soc/qcom/qcom-geni-se.c

+4 −24
Original line number Diff line number Diff line
@@ -281,27 +281,14 @@ static void geni_se_select_fifo_mode(struct geni_se *se) 


	geni_se_irq_clear(se);



	/*

	 * The RX path for the UART is asynchronous and so needs more

	 * complex logic for enabling / disabling its interrupts.

	 *

	 * Specific notes:

	 * - The done and TX-related interrupts are managed manually.

	 * - We don't RX from the main sequencer (we use the secondary) so

	 *   we don't need the RX-related interrupts enabled in the main

	 *   sequencer for UART.

	 */

	/* UART driver manages enabling / disabling interrupts internally */

	if (proto != GENI_SE_UART) {

		/* Non-UART use only primary sequencer so dont bother about S_IRQ */

		val_old = val = readl_relaxed(se->base + SE_GENI_M_IRQ_EN);

		val |= M_CMD_DONE_EN | M_TX_FIFO_WATERMARK_EN;

		val |= M_RX_FIFO_WATERMARK_EN | M_RX_FIFO_LAST_EN;

		if (val != val_old)

			writel_relaxed(val, se->base + SE_GENI_M_IRQ_EN);



		val_old = val = readl_relaxed(se->base + SE_GENI_S_IRQ_EN);

		val |= S_CMD_DONE_EN;

		if (val != val_old)

			writel_relaxed(val, se->base + SE_GENI_S_IRQ_EN);

	}



	val_old = val = readl_relaxed(se->base + SE_GENI_DMA_MODE_EN);
@@ -317,17 +304,14 @@ static void geni_se_select_dma_mode(struct geni_se *se) 


	geni_se_irq_clear(se);



	/* UART driver manages enabling / disabling interrupts internally */

	if (proto != GENI_SE_UART) {

		/* Non-UART use only primary sequencer so dont bother about S_IRQ */

		val_old = val = readl_relaxed(se->base + SE_GENI_M_IRQ_EN);

		val &= ~(M_CMD_DONE_EN | M_TX_FIFO_WATERMARK_EN);

		val &= ~(M_RX_FIFO_WATERMARK_EN | M_RX_FIFO_LAST_EN);

		if (val != val_old)

			writel_relaxed(val, se->base + SE_GENI_M_IRQ_EN);



		val_old = val = readl_relaxed(se->base + SE_GENI_S_IRQ_EN);

		val &= ~S_CMD_DONE_EN;

		if (val != val_old)

			writel_relaxed(val, se->base + SE_GENI_S_IRQ_EN);

	}



	val_old = val = readl_relaxed(se->base + SE_GENI_DMA_MODE_EN);
@@ -344,10 +328,6 @@ static void geni_se_select_gpi_mode(struct geni_se *se) 


	writel(0, se->base + SE_IRQ_EN);



	val = readl(se->base + SE_GENI_S_IRQ_EN);

	val &= ~S_CMD_DONE_EN;

	writel(val, se->base + SE_GENI_S_IRQ_EN);



	val = readl(se->base + SE_GENI_M_IRQ_EN);

	val &= ~(M_CMD_DONE_EN | M_TX_FIFO_WATERMARK_EN |

		 M_RX_FIFO_WATERMARK_EN | M_RX_FIFO_LAST_EN);