[PATCH AUTOSEL 4.19 27/84] spi: spi-cavium-thunderx: Add missing pci_release_regions()

[PATCH AUTOSEL 4.19 27/84] spi: spi-cavium-thunderx: Add missing pci_release_regions()

[Sasha Levin]

From: Chuhong Yuan <hslester96@gmail.com>

[ Upstream commit a841e2853e1afecc2ee692b8cc5bff606bc84e4c ]

The driver forgets to call pci_release_regions() in probe failure
and remove.
Add the missed calls to fix it.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Link: https://lore.kernel.org/r/20191206075500.18525-1-hslester96@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/spi/spi-cavium-thunderx.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/spi/spi-cavium-thunderx.c b/drivers/spi/spi-cavium-thunderx.c
index 877937706240..828fbbebc3c4 100644
--- a/drivers/spi/spi-cavium-thunderx.c
+++ b/drivers/spi/spi-cavium-thunderx.c
@@ -81,6 +81,7 @@ static int thunderx_spi_probe(struct pci_dev *pdev,
 
 error:
 	clk_disable_unprepare(p->clk);
+	pci_release_regions(pdev);
 	spi_master_put(master);
 	return ret;
 }
@@ -95,6 +96,7 @@ static void thunderx_spi_remove(struct pci_dev *pdev)
 		return;
 
 	clk_disable_unprepare(p->clk);
+	pci_release_regions(pdev);
 	/* Put everything in a known state. */
 	writeq(0, p->register_base + OCTEON_SPI_CFG(p));
 }
-- 
2.20.1

[PATCH AUTOSEL 4.19 35/84] spi: spi-ti-qspi: Fix a bug when accessing non default CS

[Sasha Levin]

From: Vignesh Raghavendra <vigneshr@ti.com>

[ Upstream commit c52c91bb9aa6bd8c38dbf9776158e33038aedd43 ]

When switching ChipSelect from default CS0 to any other CS, driver fails
to update the bits in system control module register that control which
CS is mapped for MMIO access. This causes reads to fail when driver
tries to access QSPI flash on CS1/2/3.

Fix this by updating appropriate bits whenever active CS changes.

Reported-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20191211155216.30212-1-vigneshr@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/spi/spi-ti-qspi.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c
index b9fb6493cd6b..95c28abaa027 100644
--- a/drivers/spi/spi-ti-qspi.c
+++ b/drivers/spi/spi-ti-qspi.c
@@ -69,6 +69,7 @@ struct ti_qspi {
 	u32 dc;
 
 	bool mmap_enabled;
+	int current_cs;
 };
 
 #define QSPI_PID			(0x0)
@@ -494,6 +495,7 @@ static void ti_qspi_enable_memory_map(struct spi_device *spi)
 				   MEM_CS_EN(spi->chip_select));
 	}
 	qspi->mmap_enabled = true;
+	qspi->current_cs = spi->chip_select;
 }
 
 static void ti_qspi_disable_memory_map(struct spi_device *spi)
@@ -505,6 +507,7 @@ static void ti_qspi_disable_memory_map(struct spi_device *spi)
 		regmap_update_bits(qspi->ctrl_base, qspi->ctrl_reg,
 				   MEM_CS_MASK, 0);
 	qspi->mmap_enabled = false;
+	qspi->current_cs = -1;
 }
 
 static void ti_qspi_setup_mmap_read(struct spi_device *spi, u8 opcode,
@@ -550,7 +553,7 @@ static int ti_qspi_exec_mem_op(struct spi_mem *mem,
 
 	mutex_lock(&qspi->list_lock);
 
-	if (!qspi->mmap_enabled)
+	if (!qspi->mmap_enabled || qspi->current_cs != mem->spi->chip_select)
 		ti_qspi_enable_memory_map(mem->spi);
 	ti_qspi_setup_mmap_read(mem->spi, op->cmd.opcode, op->data.buswidth,
 				op->addr.nbytes, op->dummy.nbytes);
@@ -807,6 +810,7 @@ static int ti_qspi_probe(struct platform_device *pdev)
 		}
 	}
 	qspi->mmap_enabled = false;
+	qspi->current_cs = -1;
 
 	ret = devm_spi_register_master(&pdev->dev, master);
 	if (!ret)
-- 
2.20.1