@@ -35,6 +35,25 @@ struct renesas_sdhi_of_data {
unsigned short max_segs;
};
+struct tmio_mmc_dma {
+ enum dma_slave_buswidth dma_buswidth;
+ bool (*filter)(struct dma_chan *chan, void *arg);
+ void (*enable)(struct tmio_mmc_host *host, bool enable);
+};
+
+struct renesas_sdhi {
+ struct clk *clk;
+ struct clk *clk_cd;
+ struct tmio_mmc_data mmc_data;
+ struct tmio_mmc_dma dma_priv;
+ struct pinctrl *pinctrl;
+ struct pinctrl_state *pins_default, *pins_uhs;
+ void __iomem *scc_ctl;
+};
+
+#define host_to_priv(host) \
+ container_of((host)->pdata, struct renesas_sdhi, mmc_data)
+
int renesas_sdhi_probe(struct platform_device *pdev,
const struct tmio_mmc_dma_ops *dma_ops);
int renesas_sdhi_remove(struct platform_device *pdev);
@@ -46,19 +46,6 @@
#define SDHI_VER_GEN3_SD 0xcc10
#define SDHI_VER_GEN3_SDMMC 0xcd10
-#define host_to_priv(host) \
- container_of((host)->pdata, struct renesas_sdhi, mmc_data)
-
-struct renesas_sdhi {
- struct clk *clk;
- struct clk *clk_cd;
- struct tmio_mmc_data mmc_data;
- struct tmio_mmc_dma dma_priv;
- struct pinctrl *pinctrl;
- struct pinctrl_state *pins_default, *pins_uhs;
- void __iomem *scc_ctl;
-};
-
static void renesas_sdhi_sdbuf_width(struct tmio_mmc_host *host, int width)
{
u32 val;
@@ -539,7 +526,6 @@ int renesas_sdhi_probe(struct platform_device *pdev,
host->bus_shift = of_data->bus_shift;
}
- host->dma = dma_priv;
host->write16_hook = renesas_sdhi_write16_hook;
host->clk_enable = renesas_sdhi_clk_enable;
host->clk_update = renesas_sdhi_clk_update;
@@ -103,6 +103,8 @@ renesas_sdhi_internal_dmac_dm_write(struct tmio_mmc_host *host,
static void
renesas_sdhi_internal_dmac_enable_dma(struct tmio_mmc_host *host, bool enable)
{
+ struct renesas_sdhi *priv = host_to_priv(host);
+
if (!host->chan_tx || !host->chan_rx)
return;
@@ -110,8 +112,8 @@ renesas_sdhi_internal_dmac_enable_dma(struct tmio_mmc_host *host, bool enable)
renesas_sdhi_internal_dmac_dm_write(host, DM_CM_INFO1,
INFO1_CLEAR);
- if (host->dma->enable)
- host->dma->enable(host, enable);
+ if (priv->dma_priv.enable)
+ priv->dma_priv.enable(host, enable);
}
static void
@@ -117,11 +117,13 @@ MODULE_DEVICE_TABLE(of, renesas_sdhi_sys_dmac_of_match);
static void renesas_sdhi_sys_dmac_enable_dma(struct tmio_mmc_host *host,
bool enable)
{
+ struct renesas_sdhi *priv = host_to_priv(host);
+
if (!host->chan_tx || !host->chan_rx)
return;
- if (host->dma->enable)
- host->dma->enable(host, enable);
+ if (priv->dma_priv.enable)
+ priv->dma_priv.enable(host, enable);
}
static void renesas_sdhi_sys_dmac_abort_dma(struct tmio_mmc_host *host)
@@ -359,6 +361,8 @@ static void renesas_sdhi_sys_dmac_issue_tasklet_fn(unsigned long priv)
static void renesas_sdhi_sys_dmac_request_dma(struct tmio_mmc_host *host,
struct tmio_mmc_data *pdata)
{
+ struct renesas_sdhi *priv = host_to_priv(host);
+
/* We can only either use DMA for both Tx and Rx or not use it at all */
if (!host->pdev->dev.of_node &&
(!pdata->chan_priv_tx || !pdata->chan_priv_rx))
@@ -378,7 +382,7 @@ static void renesas_sdhi_sys_dmac_request_dma(struct tmio_mmc_host *host,
dma_cap_set(DMA_SLAVE, mask);
host->chan_tx = dma_request_slave_channel_compat(mask,
- host->dma->filter, pdata->chan_priv_tx,
+ priv->dma_priv.filter, pdata->chan_priv_tx,
&host->pdev->dev, "tx");
dev_dbg(&host->pdev->dev, "%s: TX: got channel %p\n", __func__,
host->chan_tx);
@@ -389,7 +393,7 @@ static void renesas_sdhi_sys_dmac_request_dma(struct tmio_mmc_host *host,
cfg.direction = DMA_MEM_TO_DEV;
cfg.dst_addr = res->start +
(CTL_SD_DATA_PORT << host->bus_shift);
- cfg.dst_addr_width = host->dma->dma_buswidth;
+ cfg.dst_addr_width = priv->dma_priv.dma_buswidth;
if (!cfg.dst_addr_width)
cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
cfg.src_addr = 0;
@@ -398,7 +402,7 @@ static void renesas_sdhi_sys_dmac_request_dma(struct tmio_mmc_host *host,
goto ecfgtx;
host->chan_rx = dma_request_slave_channel_compat(mask,
- host->dma->filter, pdata->chan_priv_rx,
+ priv->dma_priv.filter, pdata->chan_priv_rx,
&host->pdev->dev, "rx");
dev_dbg(&host->pdev->dev, "%s: RX: got channel %p\n", __func__,
host->chan_rx);
@@ -408,7 +412,7 @@ static void renesas_sdhi_sys_dmac_request_dma(struct tmio_mmc_host *host,
cfg.direction = DMA_DEV_TO_MEM;
cfg.src_addr = cfg.dst_addr + host->pdata->dma_rx_offset;
- cfg.src_addr_width = host->dma->dma_buswidth;
+ cfg.src_addr_width = priv->dma_priv.dma_buswidth;
if (!cfg.src_addr_width)
cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
cfg.dst_addr = 0;
@@ -112,12 +112,6 @@
struct tmio_mmc_data;
struct tmio_mmc_host;
-struct tmio_mmc_dma {
- enum dma_slave_buswidth dma_buswidth;
- bool (*filter)(struct dma_chan *chan, void *arg);
- void (*enable)(struct tmio_mmc_host *host, bool enable);
-};
-
struct tmio_mmc_dma_ops {
void (*start)(struct tmio_mmc_host *host, struct mmc_data *data);
void (*enable)(struct tmio_mmc_host *host, bool enable);
@@ -149,7 +143,6 @@ struct tmio_mmc_host {
struct platform_device *pdev;
struct tmio_mmc_data *pdata;
- struct tmio_mmc_dma *dma;
/* DMA support */
bool force_pio;
struct tmio_mmc_dma looks like TMIO core data, but in fact, Renesas private data. Move it to renesas_sdhi.h (probably, it is better to rename it to renesas_sdhi_dma, or squash it into struct renesas_sdhi). I also moved struct renesas_sdhi and host_to_priv() to that header because they are necessary to convert the tmio_mmc_host pointer into the renesas_sdhi pointer. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> --- Changes in v2: - Newly added drivers/mmc/host/renesas_sdhi.h | 19 +++++++++++++++++++ drivers/mmc/host/renesas_sdhi_core.c | 14 -------------- drivers/mmc/host/renesas_sdhi_internal_dmac.c | 6 ++++-- drivers/mmc/host/renesas_sdhi_sys_dmac.c | 16 ++++++++++------ drivers/mmc/host/tmio_mmc.h | 7 ------- 5 files changed, 33 insertions(+), 29 deletions(-)