From 2819732219904a81205abe0fa3fbe9c06884f119 Mon Sep 17 00:00:00 2001 From: Stefan Lippers-Hollmann Date: Fri, 18 May 2018 04:50:09 +0200 Subject: ipq806x: drop linux 4.9 support Signed-off-by: Stefan Lippers-Hollmann --- ...up-Make-sure-mode-is-only-determined-once.patch | 208 --------------------- 1 file changed, 208 deletions(-) delete mode 100644 target/linux/ipq806x/patches-4.9/0003-spi-qup-Make-sure-mode-is-only-determined-once.patch (limited to 'target/linux/ipq806x/patches-4.9/0003-spi-qup-Make-sure-mode-is-only-determined-once.patch') diff --git a/target/linux/ipq806x/patches-4.9/0003-spi-qup-Make-sure-mode-is-only-determined-once.patch b/target/linux/ipq806x/patches-4.9/0003-spi-qup-Make-sure-mode-is-only-determined-once.patch deleted file mode 100644 index fd9df4448a..0000000000 --- a/target/linux/ipq806x/patches-4.9/0003-spi-qup-Make-sure-mode-is-only-determined-once.patch +++ /dev/null @@ -1,208 +0,0 @@ -From 57c4d2626bcb990a2e677b4f769a88c3d8e0911d Mon Sep 17 00:00:00 2001 -From: Andy Gross -Date: Tue, 12 Apr 2016 09:11:47 -0500 -Subject: [PATCH 03/69] spi: qup: Make sure mode is only determined once - -This patch calculates the mode once. All decisions on the current -transaction -is made using the mode instead of use_dma - -Signed-off-by: Andy Gross ---- - drivers/spi/spi-qup.c | 87 ++++++++++++++++++++++----------------------------- - 1 file changed, 37 insertions(+), 50 deletions(-) - ---- a/drivers/spi/spi-qup.c -+++ b/drivers/spi/spi-qup.c -@@ -149,12 +149,20 @@ struct spi_qup { - int rx_bytes; - int qup_v1; - -- int use_dma; -+ int mode; - struct dma_slave_config rx_conf; - struct dma_slave_config tx_conf; - }; - - -+static inline bool spi_qup_is_dma_xfer(int mode) -+{ -+ if (mode == QUP_IO_M_MODE_DMOV || mode == QUP_IO_M_MODE_BAM) -+ return true; -+ -+ return false; -+} -+ - static inline bool spi_qup_is_valid_state(struct spi_qup *controller) - { - u32 opstate = readl_relaxed(controller->base + QUP_STATE); -@@ -424,7 +432,7 @@ static irqreturn_t spi_qup_qup_irq(int i - error = -EIO; - } - -- if (!controller->use_dma) { -+ if (!spi_qup_is_dma_xfer(controller->mode)) { - if (opflags & QUP_OP_IN_SERVICE_FLAG) - spi_qup_fifo_read(controller, xfer); - -@@ -443,34 +451,11 @@ static irqreturn_t spi_qup_qup_irq(int i - return IRQ_HANDLED; - } - --static u32 --spi_qup_get_mode(struct spi_master *master, struct spi_transfer *xfer) --{ -- struct spi_qup *qup = spi_master_get_devdata(master); -- u32 mode; -- -- qup->w_size = 4; -- -- if (xfer->bits_per_word <= 8) -- qup->w_size = 1; -- else if (xfer->bits_per_word <= 16) -- qup->w_size = 2; -- -- qup->n_words = xfer->len / qup->w_size; -- -- if (qup->n_words <= (qup->in_fifo_sz / sizeof(u32))) -- mode = QUP_IO_M_MODE_FIFO; -- else -- mode = QUP_IO_M_MODE_BLOCK; -- -- return mode; --} -- - /* set clock freq ... bits per word */ - static int spi_qup_io_config(struct spi_device *spi, struct spi_transfer *xfer) - { - struct spi_qup *controller = spi_master_get_devdata(spi->master); -- u32 config, iomode, mode, control; -+ u32 config, iomode, control; - int ret, n_words; - - if (spi->mode & SPI_LOOP && xfer->len > controller->in_fifo_sz) { -@@ -491,23 +476,22 @@ static int spi_qup_io_config(struct spi_ - return -EIO; - } - -- mode = spi_qup_get_mode(spi->master, xfer); -+ controller->w_size = DIV_ROUND_UP(xfer->bits_per_word, 8); -+ controller->n_words = xfer->len / controller->w_size; - n_words = controller->n_words; - -- if (mode == QUP_IO_M_MODE_FIFO) { -+ if (n_words <= (controller->in_fifo_sz / sizeof(u32))) { -+ controller->mode = QUP_IO_M_MODE_FIFO; - writel_relaxed(n_words, controller->base + QUP_MX_READ_CNT); - writel_relaxed(n_words, controller->base + QUP_MX_WRITE_CNT); - /* must be zero for FIFO */ - writel_relaxed(0, controller->base + QUP_MX_INPUT_CNT); - writel_relaxed(0, controller->base + QUP_MX_OUTPUT_CNT); -- } else if (!controller->use_dma) { -- writel_relaxed(n_words, controller->base + QUP_MX_INPUT_CNT); -- writel_relaxed(n_words, controller->base + QUP_MX_OUTPUT_CNT); -- /* must be zero for BLOCK and BAM */ -- writel_relaxed(0, controller->base + QUP_MX_READ_CNT); -- writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); -- } else { -- mode = QUP_IO_M_MODE_BAM; -+ -+ } else if (spi->master->can_dma && -+ spi->master->can_dma(spi->master, spi, xfer) && -+ spi->master->cur_msg_mapped) { -+ controller->mode = QUP_IO_M_MODE_BAM; - writel_relaxed(0, controller->base + QUP_MX_READ_CNT); - writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); - -@@ -528,19 +512,26 @@ static int spi_qup_io_config(struct spi_ - - writel_relaxed(0, controller->base + QUP_MX_OUTPUT_CNT); - } -+ } else { -+ controller->mode = QUP_IO_M_MODE_BLOCK; -+ writel_relaxed(n_words, controller->base + QUP_MX_INPUT_CNT); -+ writel_relaxed(n_words, controller->base + QUP_MX_OUTPUT_CNT); -+ /* must be zero for BLOCK and BAM */ -+ writel_relaxed(0, controller->base + QUP_MX_READ_CNT); -+ writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); - } - - iomode = readl_relaxed(controller->base + QUP_IO_M_MODES); - /* Set input and output transfer mode */ - iomode &= ~(QUP_IO_M_INPUT_MODE_MASK | QUP_IO_M_OUTPUT_MODE_MASK); - -- if (!controller->use_dma) -+ if (!spi_qup_is_dma_xfer(controller->mode)) - iomode &= ~(QUP_IO_M_PACK_EN | QUP_IO_M_UNPACK_EN); - else - iomode |= QUP_IO_M_PACK_EN | QUP_IO_M_UNPACK_EN; - -- iomode |= (mode << QUP_IO_M_OUTPUT_MODE_MASK_SHIFT); -- iomode |= (mode << QUP_IO_M_INPUT_MODE_MASK_SHIFT); -+ iomode |= (controller->mode << QUP_IO_M_OUTPUT_MODE_MASK_SHIFT); -+ iomode |= (controller->mode << QUP_IO_M_INPUT_MODE_MASK_SHIFT); - - writel_relaxed(iomode, controller->base + QUP_IO_M_MODES); - -@@ -581,7 +572,7 @@ static int spi_qup_io_config(struct spi_ - config |= xfer->bits_per_word - 1; - config |= QUP_CONFIG_SPI_MODE; - -- if (controller->use_dma) { -+ if (spi_qup_is_dma_xfer(controller->mode)) { - if (!xfer->tx_buf) - config |= QUP_CONFIG_NO_OUTPUT; - if (!xfer->rx_buf) -@@ -599,7 +590,7 @@ static int spi_qup_io_config(struct spi_ - * status change in BAM mode - */ - -- if (mode == QUP_IO_M_MODE_BAM) -+ if (spi_qup_is_dma_xfer(controller->mode)) - mask = QUP_OP_IN_SERVICE_FLAG | QUP_OP_OUT_SERVICE_FLAG; - - writel_relaxed(mask, controller->base + QUP_OPERATIONAL_MASK); -@@ -633,7 +624,7 @@ static int spi_qup_transfer_one(struct s - controller->tx_bytes = 0; - spin_unlock_irqrestore(&controller->lock, flags); - -- if (controller->use_dma) -+ if (spi_qup_is_dma_xfer(controller->mode)) - ret = spi_qup_do_dma(master, xfer); - else - ret = spi_qup_do_pio(master, xfer); -@@ -657,7 +648,7 @@ exit: - ret = controller->error; - spin_unlock_irqrestore(&controller->lock, flags); - -- if (ret && controller->use_dma) -+ if (ret && spi_qup_is_dma_xfer(controller->mode)) - spi_qup_dma_terminate(master, xfer); - - return ret; -@@ -668,9 +659,7 @@ static bool spi_qup_can_dma(struct spi_m - { - struct spi_qup *qup = spi_master_get_devdata(master); - size_t dma_align = dma_get_cache_alignment(); -- u32 mode; -- -- qup->use_dma = 0; -+ int n_words; - - if (xfer->rx_buf && (xfer->len % qup->in_blk_sz || - IS_ERR_OR_NULL(master->dma_rx) || -@@ -682,12 +671,10 @@ static bool spi_qup_can_dma(struct spi_m - !IS_ALIGNED((size_t)xfer->tx_buf, dma_align))) - return false; - -- mode = spi_qup_get_mode(master, xfer); -- if (mode == QUP_IO_M_MODE_FIFO) -+ n_words = xfer->len / DIV_ROUND_UP(xfer->bits_per_word, 8); -+ if (n_words <= (qup->in_fifo_sz / sizeof(u32))) - return false; - -- qup->use_dma = 1; -- - return true; - } - -- cgit v1.2.3