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- From d278c7a0bf730318a7ccf8d0a8b434c813e23fd0 Mon Sep 17 00:00:00 2001
- From: "SkyLake.Huang" <[email protected]>
- Date: Thu, 23 Jun 2022 18:39:03 +0800
- Subject: [PATCH 4/6] drivers: spi-mt65xx: Add controller's calibration
- paramter
- Signed-off-by: SkyLake.Huang <[email protected]>
- ---
- drivers/spi/spi-mt65xx.c | 16 ++++++++++++++++
- 1 file changed, 16 insertions(+)
- --- a/drivers/spi/spi-mt65xx.c
- +++ b/drivers/spi/spi-mt65xx.c
- @@ -834,6 +834,21 @@ static irqreturn_t mtk_spi_interrupt(int
- return IRQ_HANDLED;
- }
-
- +static int mtk_spi_append_caldata(struct spi_controller *ctlr)
- +{
- + struct spi_cal_target *cal_target = kmalloc(sizeof(*cal_target), GFP_KERNEL);
- + struct mtk_spi *mdata = spi_master_get_devdata(ctlr);
- +
- + cal_target->cal_item = &mdata->get_tick_dly;
- + cal_target->cal_min = 0;
- + cal_target->cal_max = 7;
- + cal_target->step = 1;
- +
- + list_add(&cal_target->list, ctlr->cal_target);
- +
- + return 0;
- +}
- +
- static int mtk_spi_mem_adjust_op_size(struct spi_mem *mem,
- struct spi_mem_op *op)
- {
- @@ -1124,6 +1139,7 @@ static int mtk_spi_probe(struct platform
- master->setup = mtk_spi_setup;
- master->set_cs_timing = mtk_spi_set_hw_cs_timing;
- master->use_gpio_descriptors = true;
- + master->append_caldata = mtk_spi_append_caldata;
-
- mdata = spi_master_get_devdata(master);
- mdata->dev_comp = device_get_match_data(dev);
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