diff options
| author | Jani Nikula <jani.nikula@intel.com> | 2017-09-28 15:56:49 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2017-09-28 15:56:49 +0300 |
| commit | 32f35b863451884e856f0f577474740561a87fad (patch) | |
| tree | 2d1d55c7e2d23e27197bf84246c5f23070eb0fce /drivers/scsi/mac_esp.c | |
| parent | ae7617f0ef1820be033eef93859a6bb6174a843f (diff) | |
| parent | 754270c7c56292e97d0eff924a5d5d83f92add07 (diff) | |
| download | talos-obmc-linux-32f35b863451884e856f0f577474740561a87fad.tar.gz talos-obmc-linux-32f35b863451884e856f0f577474740561a87fad.zip | |
Merge drm-upstream/drm-next into drm-intel-next-queued
Need MST sideband message transaction to power up/down nodes.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/scsi/mac_esp.c')
| -rw-r--r-- | drivers/scsi/mac_esp.c | 37 |
1 files changed, 19 insertions, 18 deletions
diff --git a/drivers/scsi/mac_esp.c b/drivers/scsi/mac_esp.c index cdb61eaa2d1f..eb551f3cc471 100644 --- a/drivers/scsi/mac_esp.c +++ b/drivers/scsi/mac_esp.c @@ -348,26 +348,24 @@ static void mac_esp_send_pio_cmd(struct esp *esp, u32 addr, u32 esp_count, u32 dma_count, int write, u8 cmd) { struct mac_esp_priv *mep = MAC_ESP_GET_PRIV(esp); - u8 *fifo = esp->regs + ESP_FDATA * 16; + u8 __iomem *fifo = esp->regs + ESP_FDATA * 16; + u8 phase = esp->sreg & ESP_STAT_PMASK; cmd &= ~ESP_CMD_DMA; mep->error = 0; if (write) { + u8 *dst = (u8 *)addr; + u8 mask = ~(phase == ESP_MIP ? ESP_INTR_FDONE : ESP_INTR_BSERV); + scsi_esp_cmd(esp, cmd); while (1) { - unsigned int n; - - n = mac_esp_wait_for_fifo(esp); - if (!n) + if (!mac_esp_wait_for_fifo(esp)) break; - if (n > esp_count) - n = esp_count; - esp_count -= n; - - MAC_ESP_PIO_LOOP("%2@,%0@+", n); + *dst++ = esp_read8(ESP_FDATA); + --esp_count; if (!esp_count) break; @@ -375,14 +373,17 @@ static void mac_esp_send_pio_cmd(struct esp *esp, u32 addr, u32 esp_count, if (mac_esp_wait_for_intr(esp)) break; - if (((esp->sreg & ESP_STAT_PMASK) != ESP_DIP) && - ((esp->sreg & ESP_STAT_PMASK) != ESP_MIP)) + if ((esp->sreg & ESP_STAT_PMASK) != phase) break; esp->ireg = esp_read8(ESP_INTRPT); - if ((esp->ireg & (ESP_INTR_DC | ESP_INTR_BSERV)) != - ESP_INTR_BSERV) + if (esp->ireg & mask) { + mep->error = 1; break; + } + + if (phase == ESP_MIP) + scsi_esp_cmd(esp, ESP_CMD_MOK); scsi_esp_cmd(esp, ESP_CMD_TI); } @@ -402,14 +403,14 @@ static void mac_esp_send_pio_cmd(struct esp *esp, u32 addr, u32 esp_count, if (mac_esp_wait_for_intr(esp)) break; - if (((esp->sreg & ESP_STAT_PMASK) != ESP_DOP) && - ((esp->sreg & ESP_STAT_PMASK) != ESP_MOP)) + if ((esp->sreg & ESP_STAT_PMASK) != phase) break; esp->ireg = esp_read8(ESP_INTRPT); - if ((esp->ireg & (ESP_INTR_DC | ESP_INTR_BSERV)) != - ESP_INTR_BSERV) + if (esp->ireg & ~ESP_INTR_BSERV) { + mep->error = 1; break; + } n = MAC_ESP_FIFO_SIZE - (esp_read8(ESP_FFLAGS) & ESP_FF_FBYTES); |
