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